feat: added extra path documentation

Author: Brett Chaldecott

src/content/docs/developer-tools/sdks/backend/ruby-sdk.mdx

@@ -154,7 +154,7 @@ If you decide instead to use the rails engine, you can add the following to your
 mount KindeSdk::Engine, at: "/kinde_sdk"
 ```
 
-### Usage
+### Usage the AuthController in your application
 To use the AuthController consume the routes in your application. For example in a Rails view file use the auth path to trigger the login flow:
 
 ```ruby
@@ -164,6 +164,35 @@ To use the AuthController consume the routes in your application. For example in
             </a>
         </div>
 ```
+The full list of paths exposed by the controller are the following:
+
+```ruby
+kinde_sdk_auth_path
+kinde_sdk_callback_path
+kinde_sdk_logout_path
+kinde_sdk_logout_callback_path
+kinde_sdk_client_credentials_auth_path
+```
+
+#### Using the engine
+When using the AuthController with the engine your application can use the paths as follows:
+
+```ruby
+        <div class="buttons">
+            <a class="button is-primary" href="<%= kinde_sdk.auth_path %>">
+              <strong>Log in</strong>
+            </a>
+        </div>
+```
+The full list of paths exposed by the engine are the following:
+
+```ruby
+kinde_sdk.auth_path
+kinde_sdk.callback_path
+kinde_sdk.logout_path
+kinde_sdk.logout_callback_path
+kinde_sdk.client_credentials_auth_path
+```
 
 ## Sign in and registration