Update footer links (#10735)

* Fix http to https for Jekyll link in footer

Prevents 301 redirecting. Hits on every page when scanning with Xenu.

* Update facebook link

Fixes 301 redirect. Xenu hits on every single page.

source/_includes/site/footer.html

@@ -8,7 +8,7 @@
           </div>
           <div class="icons">
             <a rel="me" href='https://twitter.com/home_assistant' title="Twitter"><i class="icon-twitter"></i></a>
-            <a rel="me" href='https://facebook.com/homeassistantio' title="Facebook"><i class="icon-facebook"></i></a>
+            <a rel="me" href='https://www.facebook.com/homeassistantio' title="Facebook"><i class="icon-facebook"></i></a>
             <a rel="me" href='https://github.com/home-assistant/home-assistant' title="GitHub"><i class="icon-github"></i></a>
           </div>
         </div>
@@ -26,7 +26,7 @@
         </div>
 
         <div class='grid__item one-third lap-one-half palm-one-whole'>
-          Website powered by <a href='http://jekyllrb.com/'>Jekyll</a> and the
+          Website powered by <a href='https://jekyllrb.com/'>Jekyll</a> and the
           <a href='https://github.com/coogie/oscailte'>Oscalite theme</a>.
           Hosted by <a href='https://www.netlify.com/'>Netlify</a>.
         </div>