diff --git a/docs/source/conf.py b/docs/source/conf.py
index ec93258..092f85a 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -127,6 +127,8 @@
 #keep_warnings = False
 
 autoclass_content='both'
+autodoc_class_signature='mix'
+
 # -- Options for HTML output ----------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
@@ -478,7 +480,10 @@ def _process_variables(self, object, path):
         config_vars = []
         config_nested = {}
         for field_name, field in object.__fields__.items():
-            if BaseModel in field.type_.__mro__:
+
+            if 'providers' == field_name:
+                config_nested[field_name] = ['    List of auth provider classes to use (defaults to AAD)', '']
+            elif BaseModel in field.type_.__mro__:
                 # This is recursive here
                 config_nested[field_name] = self._process_variables(field.type_, f'{path}.{field_name}')
             else:
@@ -486,7 +491,7 @@ def _process_variables(self, object, path):
                 if field.default:
                     if not SecretStr in field.type_.__mro__:
                         if Path in field.type_.__mro__:
-                            field.default = Path(field.default).relative_to(Path(field.default).parents[2])
+                            field.default = str(Path(field.default).relative_to(Path(field.default).parents[2]))
                         if field_name == 'user_klass':
                             default_str = f' [default: :class:`{field.default.replace("`", "").replace(":", ".")}`]'
                         else:
@@ -511,10 +516,18 @@ def _process_variables(self, object, path):
             config_vars.append(f'  ``{path}.{field_name}``:')
             for var in config_nested[field_name]:
                 config_vars.append(f'  {var}')
+        config_vars.append('')
         return config_vars
 
 
+def autodoc_process_pydantic_signature(app, what, name, obj, options, signature, return_annotation):
+    if what=='class' and BaseModel in obj.__mro__:
+        signature = '(**kwargs)'
+    return signature, return_annotation
+
+
 def setup(app):
     from sphinx.util.texescape import tex_replacements
     tex_replacements += [(u'£', u"\\")]
     app.add_autodocumenter(ConfigDocumenter)
+    app.connect('autodoc-process-signature', autodoc_process_pydantic_signature)
diff --git a/docs/source/module/fastapi_aad_auth.config.rst b/docs/source/module/fastapi_aad_auth.config.rst
index c194e6f..2086134 100644
--- a/docs/source/module/fastapi_aad_auth.config.rst
+++ b/docs/source/module/fastapi_aad_auth.config.rst
@@ -1,5 +1,5 @@
 fastapi_aad_auth.config
 ***********************
-  
+
 .. automodule:: fastapi_aad_auth.config
-    :members:
\ No newline at end of file
+    :members:
diff --git a/src/fastapi_aad_auth/auth.py b/src/fastapi_aad_auth/auth.py
index 3d480ba..e1dc60e 100644
--- a/src/fastapi_aad_auth/auth.py
+++ b/src/fastapi_aad_auth/auth.py
@@ -26,17 +26,17 @@
 class Authenticator(LoggingMixin):
     """Authenticator class.
 
-    Creates the key components based on the provided configurations
+    Creates the key components based on the provided configurations.
     """
 
     def __init__(self, config: Config = None, add_to_base_routes: bool = True, base_context: Optional[Dict[str, Any]] = None, user_klass: Optional[type] = None):
         """Initialise the Authenticator based on the provided configuration.
 
         Keyword Args:
-            config (fastapi_aad_auth.config.Config): Authentication configuration (includes ui and routing, as well as AAD Application and Tenant IDs)
-            add_to_base_routes (bool): Add the authentication to the router
-            base_context (Dict[str, Any]): a base context to provide
-            user_klass (type): The user class to use as part of the auth state
+            * config (fastapi_aad_auth.config.Config): Authentication configuration (includes ui and routing, as well as AAD Application and Tenant IDs)
+            * add_to_base_routes (bool): Add the authentication to the router
+            * base_context (Dict[str, Any]): a base context to provide
+            * user_klass (type): The user class to use as part of the auth state
         """
         super().__init__()
         if config is None:
diff --git a/src/fastapi_aad_auth/config.py b/src/fastapi_aad_auth/config.py
index 0527065..753cd27 100644
--- a/src/fastapi_aad_auth/config.py
+++ b/src/fastapi_aad_auth/config.py
@@ -13,6 +13,11 @@
 class BaseSettings(DeprecatableFieldsMixin, _BaseSettings):
     """Allow deprecations in the BaseSettings object."""
 
+    def __init__(self, *args, **kwargs):  # type: ignore[no-redef]
+        """Initialise the config object."""
+        # For handling docstrings
+        super().__init__(*args, **kwargs)
+
 
 _DEPRECATION_VERSION = '0.2.0'
 
@@ -98,9 +103,9 @@ class AuthSessionConfig(BaseSettings):
     variables in a multi-worker/multi-processing environment to enable
     authentication across workers)
     """
-    secret: SecretStr = Field(str(uuid.uuid4()), description="Secret used for encoding authentication information",
+    secret: SecretStr = Field(default_factory=lambda: str(uuid.uuid4()), description="Secret used for encoding authentication information",
                               env='SESSION_AUTH_SECRET')
-    salt: SecretStr = Field(str(uuid.uuid4()), description="Salt used for encoding authentication information",
+    salt: SecretStr = Field(default_factory=lambda: str(uuid.uuid4()), description="Salt used for encoding authentication information",
                             env='SESSION_AUTH_SALT')
 
     class Config:  # noqa D106
@@ -117,7 +122,7 @@ class SessionConfig(BaseSettings):
 
     Provides configuration for the fastapi session middleware
     """
-    secret_key: SecretStr = Field(str(uuid.uuid4()), description="Secret used for the session middleware",
+    secret_key: SecretStr = Field(default_factory=lambda: str(uuid.uuid4()), description="Secret used for the session middleware",
                                   env='SESSION_SECRET')
     session_cookie: str = Field('session', description="Cookie name for the session information",
                                 env='SESSION_COOKIE')
diff --git a/src/fastapi_aad_auth/providers/aad.py b/src/fastapi_aad_auth/providers/aad.py
index 390140d..2d8a117 100644
--- a/src/fastapi_aad_auth/providers/aad.py
+++ b/src/fastapi_aad_auth/providers/aad.py
@@ -273,21 +273,21 @@ def __init__(
         """Initialise the auth backend.
 
         Args:
-            session_serializer: Session serializer object
-            client_id: Client ID from Azure App Registration
-            tenant_id: Tenant ID to connect to for Azure App Registration
+            * session_serializer: Session serializer object
+            * client_id: Client ID from Azure App Registration
+            * tenant_id: Tenant ID to connect to for Azure App Registration
 
         Keyword Args:
-            prompt: Prompt options for Azure AD
-            client_secret: Client secret value
-            scopes: Additional scopes requested
-            enabled: Boolean flag to enable this backend
-            client_app_ids: List of client apps to accept tokens from
-            strict_token: Strictly evaluate token
-            api_audience: Api Audience declared in Azure AD App registration
-            redirect_uri: Full URI for post authentication callbacks
-            domain_hint: Hint for the domain
-            user_klass: Class to use as a user.
+            * prompt: Prompt options for Azure AD
+            * client_secret: Client secret value
+            * scopes: Additional scopes requested
+            * enabled: Boolean flag to enable this backend
+            * client_app_ids: List of client apps to accept tokens from
+            * strict_token: Strictly evaluate token
+            * api_audience: Api Audience declared in Azure AD App registration
+            * redirect_uri: Full URI for post authentication callbacks
+            * domain_hint: Hint for the domain
+            * user_klass: Class to use as a user.
         """
         redirect_path = self._build_oauth_url(oauth_base_route, 'redirect')
         token_validator = AADTokenValidator(client_id=client_id, tenant_id=tenant_id, api_audience=api_audience,
diff --git a/src/fastapi_aad_auth/utilities/__init__.py b/src/fastapi_aad_auth/utilities/__init__.py
index 6ff9603..63b81f5 100644
--- a/src/fastapi_aad_auth/utilities/__init__.py
+++ b/src/fastapi_aad_auth/utilities/__init__.py
@@ -1,7 +1,9 @@
 """Utilities."""
 import importlib
+from pathlib import Path
 from typing import List, Union
 
+from pydantic import SecretStr
 from pydantic.main import ModelMetaclass
 from starlette.requests import Request
 
@@ -49,8 +51,20 @@ def expand_doc(klass: ModelMetaclass) -> ModelMetaclass:
     docs = ['', '', 'Keyword Args:']
     for name, field in klass.__fields__.items():  # type: ignore
         default_str = ''
+        #
         if field.default:
-            default_str = f' [default: ``{field.default}``]'
+            default_str = ''
+            if field.default:
+                if SecretStr not in field.type_.__mro__:
+                    default = field.default
+                    if Path in field.type_.__mro__:
+                        default = str(Path(default).relative_to(Path(default).parents[2]))
+                    if field.name == 'user_klass':
+                        default_str = f' [default: :class:`{default.replace("`", "").replace(":", ".")}`]'
+                    else:
+                        default_str = f' [default: ``{default}``]'
+                else:
+                    default_str = ' [default: ``uuid.uuid4()``]'
         module = field.outer_type_.__module__
         if module != 'builtins':
             if hasattr(field.outer_type_, '__origin__'):
diff --git a/src/fastapi_aad_auth/utilities/deprecate.py b/src/fastapi_aad_auth/utilities/deprecate.py
index 087283e..84497fa 100644
--- a/src/fastapi_aad_auth/utilities/deprecate.py
+++ b/src/fastapi_aad_auth/utilities/deprecate.py
@@ -43,6 +43,7 @@ def DeprecatedField(*args, **kwargs):  # noqa: D103
 
 class DeprecatableFieldsMixin:
     """Mixin for deprecatable fields."""
+
     def __new__(cls, *args, **kwargs):
         """Initialise the Field Deprecation Validator."""
         for field_name, field in cls.__fields__.items():
@@ -110,7 +111,7 @@ def _update_docstring(deprecation_message, docstring=None):
         docstring = ''
     else:
         docstring += '\n\n'
-    docstring += f"DEPRECATED - {deprecation_message}"
+    docstring += f"*DEPRECATED* - {deprecation_message}"
     return docstring
 
 
diff --git a/tox.ini b/tox.ini
index ed089b3..5101d0d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -28,7 +28,7 @@ commands =
     lint: flake8 src/
     lint: pipenv check
     test: pytest  {posargs: -rs tests/unit --log-level=WARNING --cov=fastapi_aad_auth --cov-report xml:{toxinidir}/reports/{envname}-coverage.xml}
-    docs: python -m sphinx -b html -a {toxinidir}/docs/source {toxinidir}/docs/html
+    docs: python -m sphinx -E -b html -a {toxinidir}/docs/source {toxinidir}/docs/html
     build: python setup.py sdist --format=zip
     build: python setup.py sdist --format=gztar
     build: python setup.py bdist_wheel