Update _config.yml

Author: YURLAK

_config.yml

@@ -15,6 +15,7 @@ minima:
   social_links:
     - { platform: github,         user_url: "https://github.com/YURLAK" }
     - { platform: telegram,       user_url: "https://t.me/YURLAK" }
+    - { platform: twitter,       user_url: "https://twitter.com/YURLAK" }
 
 # If you want to link only specific pages in your header, uncomment
 # this and add the path to the pages in order as they should show up