Updated Scrapy release procedure (markdown)

Scrapy-release-procedure.md

@@ -76,7 +76,7 @@ re-packagings in the Python Package Index.
 
 New Scrapy versions are automatically deployed on the
 [Python Package Index](https://pypi.org/project/Scrapy/) through
-[Travis CI](https://travis-ci.org/scrapy/scrapy/builds), at the
+[GitHub Actions](https://github.com/scrapy/scrapy/actions), at the
 end of the tag build job where `PYPI_RELEASE_JOB=true` is defined.
 
 ## Read the Docs
@@ -104,16 +104,13 @@ Update [scrapy versions](https://github.com/scrapy/scrapy.github.io/blob/master/
 ## Send announcements
 
 In the case or major and minor versions, or patch versions that users
-should install with urgency (e.g. patch versions fixing security issues):
+should install with urgency (e.g. patch versions fixing security issues),
+leave a message with a link to the release notes in:
 
-*   Leave a message in the `#scrapy` IRC channel with a link to the release
-    notes
-
-*   [Submit a link entry to the Scrapy subreddit](https://www.reddit.com/r/scrapy/submit)
-    that links to the release notes.
-
-*   Tweet from [@ScrapyProject](https://twitter.com/ScrapyProject) with a link
-    to the release notes. (only for major and minor versions)
+- IRC
+- Discord
+- [Reddit](https://www.reddit.com/r/scrapy/submit)
+- [Twitter](https://twitter.com/ScrapyProject)
 
 ## Update Conda packages