Update various endpoints.

app/Api/V1/Controllers/Insight/Transfer/AccountController.php

@@ -58,6 +58,8 @@ class AccountController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransfers
      *
      * @param GenericRequest $request
      *

app/Api/V1/Controllers/Insight/Transfer/CategoryController.php

@@ -65,6 +65,9 @@ class CategoryController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransferCategory
+     *
      * @param GenericRequest $request
      *
      * @return JsonResponse
@@ -99,6 +102,9 @@ class CategoryController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransferNoCategory
+     *
      * @param GenericRequest $request
      *
      * @return JsonResponse

app/Api/V1/Controllers/Insight/Transfer/PeriodController.php

@@ -36,6 +36,9 @@ class PeriodController extends Controller
 {
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransferTotal
+     *
      * @param GenericRequest $request
      *
      * @return JsonResponse

app/Api/V1/Controllers/Insight/Transfer/TagController.php

@@ -55,7 +55,8 @@ class TagController extends Controller
     }
 
     /**
-     * Expenses for no tag filtered by account.
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransferNoTag
      *
      * @param GenericRequest $request
      *
@@ -107,6 +108,9 @@ class TagController extends Controller
     }
 
     /**
+     * This endpoint is documented at:
+     * https://api-docs.firefly-iii.org/#/insight/insightTransferTag
+     *
      * Transfers per tag, possibly filtered by tag and account.
      *
      * @param GenericRequest $request