Add links to endpoints.

app/Api/V1/Controllers/Models/Budget/DestroyController.php

@@ -54,6 +54,9 @@ class DestroyController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/deleteBudget
+     *
      * Remove the specified resource from storage.
      *
      * @param Budget $budget

app/Api/V1/Controllers/Models/Budget/ListController.php

@@ -71,6 +71,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/listAttachmentByBudget
+     *
      * @param Budget $budget
      *
      * @return JsonResponse
@@ -101,6 +104,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/listBudgetLimitByBudget
+     *
      * Display a listing of the resource.
      *
      * @param Budget $budget
@@ -130,6 +136,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/listTransactionByBudget
+     *
      * Show all transactions.
      *
      * @param Request $request

app/Api/V1/Controllers/Models/Budget/ShowController.php

@@ -64,6 +64,9 @@ class ShowController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/listBudget
+     *
      * Display a listing of the resource.
      *
      * @return JsonResponse

app/Api/V1/Controllers/Models/Budget/StoreController.php

@@ -57,6 +57,9 @@ class StoreController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/storeBudget
+     *
      * Store a budget.
      *
      * @param StoreRequest $request

app/Api/V1/Controllers/Models/Budget/UpdateController.php

@@ -57,6 +57,9 @@ class UpdateController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/budgets/updateBudget
+     *
      * Update a budget.
      *
      * @param UpdateRequest $request