Add /user/top_100 endpoint

Author: dev-ruby

src/openapi.yaml

@@ -126,6 +126,8 @@ paths:
           description: "TODO"
   /user/show:
     $ref: "./paths/user/show.yaml#/paths/Path"
+  /user/top_100:
+    $ref: "./paths/user/top_100.yaml#/paths/Path"
 
 components:
   securitySchemes: