Implement maintainer feedback removed by accident from prior push

- Update Twitter references to X in Contact.md and README.md
- Add YouTube channel to Contact.md
- Remove IRC reference from CONTRIBUTING.md as requested
- Address all maintainer suggestions from PR review

Author: jacob.w.pham.mil

CONTRIBUTING.md

@@ -85,7 +85,7 @@ When reporting Metasploit issues:
 * **Don't** attempt to report issues on a closed PR.
 
 If you need some more guidance, talk to the main body of open source contributors over on our
-[GitHub Discussions](https://github.com/rapid7/metasploit-framework/discussions), [Metasploit Slack] or [#metasploit on Freenode IRC].
+[GitHub Discussions](https://github.com/rapid7/metasploit-framework/discussions) or [Metasploit Slack]
 
 Finally, **thank you** for taking the few moments to read this far! You're already way ahead of the
 curve, so keep it up!

README.md

@@ -23,7 +23,7 @@ For questions and suggestions, you can:
 - Join our [GitHub Discussions](https://github.com/rapid7/metasploit-framework/discussions) for community support and general questions
 - Join the [Metasploit Slack](https://join.slack.com/t/metasploit/shared_invite/zt-30i688it0-mJsFGT44IMtdeZi1DraamQ) for real-time chat
 - Submit [GitHub Issues](https://github.com/rapid7/metasploit-framework/issues) for bug reports and feature requests
-- Follow [@metasploit](https://twitter.com/metasploit) on Twitter or [@metasploit@infosec.exchange](https://infosec.exchange/@metasploit) on Mastodon for updates
+- Follow [@metasploit](https://x.com/metasploit) on X or [@metasploit@infosec.exchange](https://infosec.exchange/@metasploit) on Mastodon for updates
 
 **Note:** Some community members may still use IRC channels and the metasploit-hackers mailing list, though the primary support channels are now GitHub Discussions and Slack.
 

docs/metasploit-framework.wiki/Contact.md

@@ -25,9 +25,10 @@ The old list [is archived on seclists.org][archive].
 
 ## Social Media
 
-- **Twitter**: [@metasploit](https://twitter.com/metasploit)
+- **X**: [@metasploit](https://x.com/metasploit)
 - **Mastodon**: [@metasploit@infosec.exchange](https://infosec.exchange/@metasploit)
 - **Blog**: [Rapid7 Blog - Metasploit Tag](https://www.rapid7.com/blog/tag/metasploit/)
+- **YouTube**: [Metasploit YouTube](https://youtube.com/@MetasploitR7)
 
 # Abuse