Improve documentation

Improve language for easier readability
Add missing Axes.W004 check code to docs
Update flow image with better diagram language

docs/2_installation.rst

@@ -85,6 +85,7 @@ Axes has the following warnings codes built in:
 - ``axes.W001`` for invalid ``CACHES`` configuration.
 - ``axes.W002`` for invalid ``MIDDLEWARE`` configuration.
 - ``axes.W003`` for invalid ``AUTHENTICATION_BACKENDS`` configuration.
+- ``axes.W004`` for deprecated use of ``AXES_*`` setting flags.
 
 
 .. note::
@@ -96,10 +97,10 @@ Axes has the following warnings codes built in:
 Disabling Axes components in tests
 ----------------------------------
 
-If you get errors when running tests or other configurations, try setting the ``AXES_ENABLED``
-flag to ``False`` in your project or test settings configuration file::
+If you get errors when running tests, try setting the
+``AXES_ENABLED`` flag to ``False`` in your test settings::
 
     AXES_ENABLED = False
 
-This disables the Axes middleware, authentication backend and signal handlers
-which might produce errors with exotic test configurations.
+This disables the Axes middleware, authentication backend and signal receivers,
+which might fix errors with incompatible test configurations.

docs/7_architecture.rst

@@ -73,5 +73,5 @@ to log in users or otherwise take care of notifying Axes of authentication
 attempts and failures the same way Django does via authentication signals.
 
 The login flows can be customized and the Axes
-authentication backend, middleware, and handlers
+authentication backend, middleware, and signal receivers
 can easily be swapped to alternative implementations.