about: added link to Mastodon profile

ariadnavigo · ariadnavigo · commit 93186f5d8a05 · 2025-06-11T14:08:21.000+02:00
diff --git a/content/about/index.md b/content/about/index.md
@@ -23,3 +23,4 @@ These are the ways you can find me on the internet:
 1. **Email:** [ariadna@ariadnavigo.xyz](mailto:ariadna@ariadnavigo.xyz) 
    (You may find my OpenPGP key via WKD) 
 2. **GitHub:** [@ariadnavigo](https://github.com/ariadnavigo)
+3. **Mastodon:** [@ariadna@social.tchncs.de](https://social.tchncs.de/@ariadna)
