Add links to endpoints.

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

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

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

@@ -67,6 +67,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/listAttachmentByBill
+     *
      * Display a listing of the resource.
      *
      * @param Bill $bill
@@ -99,6 +102,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/listRuleByBill
+     *
      * List all of them.
      *
      * @param Bill $bill
@@ -134,6 +140,9 @@ class ListController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/listTransactionByBill
+     *
      * Show all transactions.
      *
      * @param Request $request

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

@@ -60,6 +60,9 @@ class ShowController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/listBill
+     *
      * Display a listing of the resource.
      *
      * @return JsonResponse
@@ -87,6 +90,9 @@ class ShowController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/getBill
+     *
      * Show the specified bill.
      *
      * @param Bill $bill

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

@@ -60,6 +60,9 @@ class StoreController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/bills/storeBill
+     *
      * Store a bill.
      *
      * @param StoreRequest $request

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

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