Fixed img link

Author: kenerwin88

Vagrant.html

@@ -8,7 +8,7 @@ <h2>Vagrant Course Outline</h2>
 </center>
   <p>Interested in creating lightweight, reproducible development environments using Vagrant?  Here you go!<p>
 <center>
-  <img src="/images/vagrant.png" height="25%" width="25%" /></center><br/>
+  <img src="/images/Vagrant.png" height="25%" width="25%" /></center><br/>
 
 {% assign pages = site.categories['Vagrant'] | sort:"weight"%}
 <ol>