docs: add commitlint-plugin-selective-scope (#3462)

Author: ridvanaltun

docs/reference-community-projects.md

@@ -13,4 +13,5 @@ If you want to add a project to this list [open a pull request](https://github.c
 - [Gitmoji Commit Workflow](https://github.com/arvinxx/gitmoji-commit-workflow)
 - [commitlint.io](https://github.com/tomasen/commitlintio) - helps your project to ensures nice and tidy commit messages without needing any download or installation
 - [commitlint plugin function rules](https://github.com/vidavidorra/commitlint-plugin-function-rules) - use functions as rule value to create rules based on commit messages, with regular expressions and more
+- [commitlint-plugin-selective-scope](https://github.com/ridvanaltun/commitlint-plugin-selective-scope) - limit scopes per type with regular expressions and plain text
 - [commitlint-gitlab-ci](https://gitlab.com/dmoonfire/commitlint-gitlab-ci/) - a small wrapper around `commitlint` for working with the quirks of Gitlab's CI without failing jobs