adjusted auth title

Author: soheimam

docs/docs.json

@@ -446,7 +446,7 @@
             "pages": [
               "mini-apps/features/overview",
               "mini-apps/features/manifest",
-              "mini-apps/features/Authentication",
+              "mini-apps/features/authentication",
               "mini-apps/features/context",
               "mini-apps/features/embeds-and-previews",
               "mini-apps/features/search-and-discovery",