Make the description of the unofficial guides simpler.

source/installation/index.html

@@ -55,7 +55,7 @@ suppress_header: true
       <ul>
         <li><p><a href="https://gitlab.com/gitlab-org/gitlab-recipes/">GitLab recipes</a> repository with unofficial guides for using GitLab with different software (operating systems, webservers, etc.) than the official version.</p></li>
-        <li><p><a href="https://github.com/gitlabhq/gitlab-public-wiki/wiki/Unofficial-Installation-Guides">Installation guides</a> public wiki with unofficial guides to install GitLab on different operating systems.</p></li>
+        <li><p><a href="https://github.com/gitlabhq/gitlab-public-wiki/wiki/Unofficial-Installation-Guides">Unofficial installation guides</a> on the public wiki to install GitLab on different operating systems.</p></li>
         <li><p><a href="https://github.com/sameersbn/docker-gitlab">Docker</a> Dockerfile to build a GitLab container image by Sameer Naik</p></li>