Update about.html

Author: Gangzi-Jia

_includes/about.html

@@ -1,6 +1,6 @@
 <div class="col s12 tag-div">
   <div class="user-pic center-align">
-    <a href="{{site.github_profile}}" target="_blank"><img class="circle hoverable z-depth-1" src="{{site.baseurl}}/assets/res/unic.png"></a>
+    <a href="{{site.github_profile}}" target="_blank"><img class="circle hoverable z-depth-1" src="{{site.baseurl}}/assets/res/user.png"></a>
   </div>
   <div class="user-intro center-align">
     <h4 class="hidden">I am a <span id="js-rotating">So Simple, Very Doge, Much Wow, Such Cool</span> Text Rotator</h4>