docs: display changes

- Reduced size of the social menu and increased the size of the content
- Added scrollable property to the index menus
- Fixed code wrapping issue

Fixes #2103

Signed-off-by: Anagh Kumar Baranwal <anaghk.dos@gmail.com>

docs/layouts/indexes/category.html

@@ -3,7 +3,7 @@
 {{ template "chrome/navbar.html" . }}
 <div class="container">
     <div class="row">
-        <div class="col-md-9">
+        <div class="col-md-10">
             <div class="well well-sm">
                 <strong>Items in category <code>{{ .Title | lower }}</code></strong>
                 <ul class="list-unstyled">
@@ -15,10 +15,10 @@
         </div>
 
         <!-- Sidebar -->
-        <div class="col-md-3">
+        <div class="col-md-2">
         {{ template "chrome/menu.html" . }}
         </div>
     </div>
 {{ template "chrome/footer.copyright.html" . }}
 </div>
-{{ template "chrome/footer.html" . }}
+{{ template "chrome/footer.html" . }}