Try a deep link into homepag source

_config.yml

@@ -42,7 +42,7 @@ social:
   links:
     # The first element serves as the copyright owner's link
     # - https://twitter.com/username # change to your Twitter homepage
-    - https://github.com/adr # change to your GitHub homepage
+    - https://github.com/adr/adr.github.io # change to your GitHub homepage
     # Uncomment below to add more social links
     # - https://www.facebook.com/username
     # - https://www.linkedin.com/in/username