Update footer

Author: sophiebremer

_config.yml

@@ -33,8 +33,9 @@ minima:
   date_format: "%Y-%m-%d"
   skin: auto
   social_links:
-    - { platform: github, user_url: "https://github.com/typescriptlibs/" }
-    - { platform: rss,    user_url: "feed.xml" }
+    - { platform: github,   user_url: "https://github.com/typescriptlibs/" }
+    - { platform: mastodon, user_url: "https://mastodon.social/@typescriptlibs" }
+    - { platform: rss,      user_url: "feed.xml" }
 
 sass:
   quiet_deps: true