message: Add section "Typegoose Plugins" to plugins
  plugins(gh-page): add section "Typegoose Plugins"
diff: @@ -20,3 +20,7 @@ class User extends FindOrCreate {}
  const UserModel = getModelForClass(User);
  const result = await UserModel.findOrCreate({ ... });
  ```
  +
  +## Typegoose plugins
  +
  +- [Auto-Increment](https://github.com/typegoose/auto-increment/)
  