fix github link

_config.yml

@@ -1,7 +1,7 @@
 title: vLLM Blog
 author:
   name: © 2023. vLLM Team. All rights reserved.
-  email: https://github.com/vllm-project/vllm
+  github: https://github.com/vllm-project/vllm
 google_analytics: G-9C5R3JR3QS
 
 # The `>` after `description:` means to ignore line-breaks until next key.

_includes/footer.html

@@ -17,8 +17,8 @@
           {% if site.author.name -%}
             <li class="p-name">{{ site.author.name | escape }}</li>
           {% endif -%}
-          {% if site.author.email -%}
-            <li><a class="u-email" href="mailto:{{ site.author.email }}">{{ site.author.email }}</a></li>
+          {% if site.author.github -%}
+            <li><a href="{{ site.author.github }}">{{ site.author.github }}</a></li>
           {%- endif %}
         </ul>
       {%- endif %}