Merge pull request #12671 from Quy/master

Update docs prefixing

docs/about.html

@@ -103,10 +103,10 @@ lead: "Learn about the project's history, meet the maintaining teams, and find o
   <p>Use either the Bootstrap mark (a capital <strong>B</strong>) or the standard logo (just <strong>Bootstrap</strong>). It should always appear in Helvetica Neue Bold. <strong>Do not use the Twitter bird</strong> in association with Bootstrap.</p>
   <div class="bs-brand-logos">
     <div class="bs-brand-item">
-      <div class="bs-booticon bs-booticon-lg">B</div>
+      <div class="bs-docs-booticon bs-docs-booticon-lg">B</div>
     </div>
     <div class="bs-brand-item inverse">
-      <div class="bs-booticon bs-booticon-lg bs-booticon-inverse">B</div>
+      <div class="bs-docs-booticon bs-docs-booticon-lg bs-docs-booticon-inverse">B</div>
     </div>
   </div>
   <div class="bs-brand-logos">