chore: update command comment (#1501)

tools/goctl/model/mongo/readme.md

@@ -196,7 +196,7 @@ OPTIONS:
    --type value, -t value  specified model type name
    --cache, -c             generate code with cache [optional]
    --dir value, -d value   the target dir
-   --style value           the file naming format, see [https://github.com/tal-tech/go-zero/tree/master/tools/goctl/config/readme.md]
+   --style value           the file naming format, see [https://github.com/zeromicro/go-zero/tree/master/tools/goctl/config/readme.md]
 
 ```