Fix typo in tags API documentation example request

docs/sources/http_api/dashboard.md

@@ -200,7 +200,7 @@ Get all tags of dashboards
 
 **Example Request**:
 
-    GET /api/dashboards/home HTTP/1.1
+    GET /api/dashboards/tags HTTP/1.1
     Accept: application/json
     Content-Type: application/json
     Authorization: Bearer eyJrIjoiT0tTcG1pUlY2RnVKZTFVaDFsNFZXdE9ZWmNrMkZYbk