Add endpoint links.

app/Api/V1/Controllers/Webhook/AttemptController.php

@@ -61,6 +61,9 @@ class AttemptController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/getWebhookMessageAttempts
+     *
      * @param Webhook        $webhook
      * @param WebhookMessage $message
      *
@@ -94,6 +97,9 @@ class AttemptController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/getSingleWebhookMessageAttempt
+     *
      * Show single instance.
      *
      * @param Webhook        $webhook

app/Api/V1/Controllers/Webhook/DestroyController.php

@@ -56,6 +56,9 @@ class DestroyController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/deleteWebhook
+     *
      * Remove the specified resource from storage.
      *
      * @param Webhook $webhook
@@ -71,6 +74,9 @@ class DestroyController extends Controller
     }
 
     /**
+     * This webhook is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/deleteWebhookMessageAttempt
+     *
      * Remove the specified resource from storage.
      *
      * @param Webhook        $webhook
@@ -97,6 +103,9 @@ class DestroyController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/deleteWebhookMessage
+     *
      * Remove the specified resource from storage.
      *
      * @param Webhook        $webhook

app/Api/V1/Controllers/Webhook/MessageController.php

@@ -57,6 +57,9 @@ class MessageController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/getWebhookMessages
+     *
      * @param Webhook $webhook
      *
      * @return JsonResponse
@@ -86,6 +89,9 @@ class MessageController extends Controller
     }
 
     /**
+     * This endpoint is documented:
+     * https://api-docs.firefly-iii.org/#/webhooks/getSingleWebhookMessage
+     *
      * Show single instance.
      *
      * @param Webhook        $webhook

app/Api/V1/Controllers/Webhook/ShowController.php

@@ -59,6 +59,9 @@ class ShowController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/listWebhook
+     *
      * Display a listing of the webhooks of the user.
      *
      * @return JsonResponse
@@ -88,6 +91,9 @@ class ShowController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/getWebhook
+     *
      * Show single instance.
      *
      * @param Webhook $webhook

app/Api/V1/Controllers/Webhook/StoreController.php

@@ -55,6 +55,9 @@ class StoreController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/storeWebhook
+     *
      * @param CreateRequest $request
      *
      * @return JsonResponse

app/Api/V1/Controllers/Webhook/SubmitController.php

@@ -53,6 +53,9 @@ class SubmitController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/submitWebook
+     *
      * Remove the specified resource from storage.
      *
      * @param Webhook $webhook

app/Api/V1/Controllers/Webhook/UpdateController.php

@@ -55,6 +55,9 @@ class UpdateController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/webhooks/updateWebhook
+     *
      * @param Webhook       $webhook
      * @param UpdateRequest $request
      *