Updated README with relevant information

README.md

@@ -12,6 +12,47 @@ c.JupyterHub.authenticator_class = FBBusinessAuthenticator
 c.FBBusinessAuthenticator.client_id = 'app_id'
 c.FBBusinessAuthenticator.client_secret = 'app_secret'
 ```
+## authenticator.py
+### Functions
+```python
+async def authenticate(self, handler, data=None)
+# Authenticates a user with self-set OAuth parameters
+async def _http_get(self, url)
+# Fetches JSON data using the token URL + params
+async def _get_user_id(self, access_token)
+# Return user id of the given user; throw a HTTP 500 error otherwise
+async def authorize(self, access_token, user_id)
+# To be implemented
+def _get_app_secret_proof(self, access_token)
+# Generate the app_secret_proof
+def pre_spawn_start(self, user, spawner)
+# Sets user's access token in spawner environment for use in spawned processes, if it exists
+```
+## business_authenticator.py
+### Functions
+```python
+async def authorize(self, access_token, user_id)
+# Authorizes user if this user has the business management role and/or if this user is in the business
+async def _check_permission(self, access_token, permission, proof)
+# Return true if the user has the given permission, false if not; throw a HTTP 500 error otherwise
+async def _check_in_business(self, access_token, proof)
+# Return true if the user is in the given business, false if not; throw a HTTP 500 error otherwise
+async def _check_in_page(self, body_json, current_page)
+# Return false if the current page is larger than the threshold. Return true if the user is in the given page. Then recursively check the next page if it exists, return false if not. Throw a HTTP 500 error otherwise.
+def _has_business(self, data)
+# Given the data of one page of business users, check if the user is in the business. Return true if the user is in the business, false otherwise.
+```
+## delegate_bearer_authenticator.py
+### Functions
+```python
+async def authorize(self, access_token, user_id)
+# Authorizes the user via a specified endpoint
+```
+
+## Example
+See example_jupyterhub_config.py for an example configuration
+
+## Contributions
 
 See the [CONTRIBUTING](CONTRIBUTING.md) file for how to help out.