Update coding standards

doc/coding_standards.rst

@@ -88,17 +88,23 @@ standards:
     [1, 2, 3]
     {'name': 'Fabien'}
 
-* Do not put any spaces before and after ``=`` in macro argument declarations:
+* Put exactly one space before and after ``=`` in macro argument declarations:
 
   .. code-block:: twig
 
-    {% macro html_input(class="input") %}
+    {% macro html_input(class = "input") %}
 
-* Put exactly one space after the ``:`` sign in macro argument declarations:
+* Do not put any spaces before and after ``=`` sign when using named arguments:
 
   .. code-block:: twig
 
-    {% macro html_input(class: "input") %}
+    {% html_input(class="input") %}
+
+* Put exactly one space after the ``:`` sign when using named arguments:
+
+  .. code-block:: twig
+
+    {% html_input(class: "input") %}
 
 * Use snake case for all variable names (provided by the application and
   created in templates), function/filter/test names, argument names and named