File sync from hanakai-rb/repo-sync

Updated files:

- README.md

Author: github-actions[bot]

README.md

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 <!--- This file is synced from hanakai-rb/repo-sync -->
 
-[rubygem]: https://rubygems.org/gems/dry-struct
 [actions]: https://github.com/dry-rb/dry-struct/actions
+[discord]: https://discord.gg/naQApPAsZB
+[discourse]: https://discourse.hanamirb.org
+[rubygem]: https://rubygems.org/gems/dry-struct
 
 # dry-struct [![Gem Version](https://badge.fury.io/rb/dry-struct.svg)][rubygem] [![CI Status](https://github.com/dry-rb/dry-struct/workflows/CI/badge.svg)][actions]
 
+[![Discourse](https://img.shields.io/badge/Forum-dc360f?logo=discourse&logoColor=white)][discourse]
+[![Discord](https://img.shields.io/badge/Discord-717cf8?logo=chat&logoColor=white)][discord]
+
 ## Links
 
 - [User documentation](https://dry-rb.org/gems/dry-struct)