Update user guide url

Author: Sunderlandkyl

_includes/JB/analytics-providers/google

@@ -7,7 +7,7 @@ m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
 
 ga('create', '{{ site.JB.analytics.google.tracking_id }}', 'auto', {'allowLinker': true});
 ga('require', 'linker');
-ga('linker:autoLink', ['perk-software.cs.queensu.ca']);
+ga('linker:autoLink', ['pluslib.readthedocs.io']);
 ga('send', 'pageview');
 
 </script>

_includes/themes/twitter/top.html

@@ -30,7 +30,7 @@ <h2>
   <div class="span4">
     <h2>User's guide</h2>
     <p>Learn how to set up your hardware and software to work with Plus.</p>
-    <p><a class="btn" href="http://perk-software.cs.queensu.ca/plus/doc/nightly/user/index.html">View user's guide &raquo;</a></p>
+    <p><a class="btn" href="https://pluslib.readthedocs.io/en/latest/">View user's guide &raquo;</a></p>
   </div>
   <div class="span4">
     <h2>Developer's guide</h2>