fixing typo

Author: noahbenson

_includes/biocard.html

@@ -28,7 +28,7 @@ <h1 class="biocard-name">{{include.fullname}}</h1>
         {% endif %}
       {% if include.github %}
         <p class="biocard-link">
-          <a href="https://github.com/{{include.github}}">GitHib</a>
+          <a href="https://github.com/{{include.github}}">GitHub</a>
           </p>
         {% endif %}
       {% if include.website %}