docs: fix file name (#185)

diff --git a/docs/en/latest/config.json b/docs/en/latest/config.json
index 4ecf626..fefb1ee 100644
--- a/docs/en/latest/config.json
+++ b/docs/en/latest/config.json
@@ -23,7 +23,7 @@
       },
       {
         "type": "doc",
-        "id": "hot-reload"
+        "id": "hot-reloading"
       }
     ]
   }