add Anchorpoint (#136)

Anchorpoint is an artist friendly Git client that offers an integration to self-hosted Gitea servers

Reviewed-on: https://gitea.com/gitea/awesome-gitea/pulls/136
Reviewed-by: delvh <dev.lh@web.de>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Jochen Hunz <j.hunz@anchorpoint.app>
Co-committed-by: Jochen Hunz <j.hunz@anchorpoint.app>

README.md

@@ -152,6 +152,7 @@ A curated list of awesome projects related to Gitea and its soft-fork instances.
 - [intellij-gitea-plugin](https://github.com/e1fueg0/intellij-gitea-plugin) - Gitea issue tracker integration plugin for Jetbrains IDE platform.
 - [redmine_merge_request_links](https://github.com/tf/redmine_merge_request_links#gitea) - Gitea pull request integration for Redmine issue tracker.
 - [Gitea](https://github.com/LeonDevLifeLog/gitea-idea-plugin) plugin for JetBrains IDEs(Idea,Android Studio,etc).
+- [Gitea-Anchorpoint](https://docs.anchorpoint.app/docs/1-overview/integrations/gitea) Gitea integration plugin for an artist friendly Git client.
 
 ## Scripts