tweaks

Author: kennethreitz

docs/_templates/sidebarintro.html

@@ -23,7 +23,7 @@ <h3>Stay Informed</h3>
 
 <h3>Sponsor</h3>
 <a href="http://www.datacamp.com/?utm_source=python_guide&utm_campaign=display">
-<img src="http://media.kennethreitz.com.s3.amazonaws.com/ad.png" alt="">
+<img src="//media.kennethreitz.com.s3.amazonaws.com/ad.png" alt="">
 </a>
 
 <h3>O'Reilly Book</h3>

docs/_templates/sidebarlogo.html

@@ -21,7 +21,7 @@ <h3>Get Updates</h3>
 
 <h3>Sponsor</h3>
 <a href="http://www.datacamp.com/?utm_source=python_guide&utm_campaign=display">
-<img src="http://media.kennethreitz.com.s3.amazonaws.com/ad.png" alt="">
+<img src="//media.kennethreitz.com.s3.amazonaws.com/ad.png" alt="">
 </a>
 
 <h3>O'Reilly Book</h3>