forgot to add the Usage in the table of contents

README.md

@@ -2,7 +2,6 @@
   
   <img src="https://user-images.githubusercontent.com/27065646/53551960-ae4dff80-3b3a-11e9-9075-cef786c69364.png"/>
   
-
   <br>
   <span>Hunt down social media accounts by username across <a href="https://github.com/theyahya/sherlock/blob/master/sites.md">social networks</a></span>
   <br>
@@ -15,7 +14,15 @@
 </p>
 
 <p align="center">
-  <a href="#demo">Demo</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;<a href="#installation">Installation</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;<a href="#docker-notes">Docker Notes</a>&nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;<a href="#adding-new-sites">Adding New Sites</a>
+  <a href="#demo">Demo</a>
+  &nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;
+  <a href="#installation">Installation</a>
+  &nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;
+  <a href="#usage">Usage</a>
+  &nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;
+  <a href="#docker-notes">Docker Notes</a>
+  &nbsp;&nbsp;&nbsp;|&nbsp;&nbsp;&nbsp;
+  <a href="#adding-new-sites">Adding New Sites</a>
 </p>
 
 <p align="center">