search-engines: add Mojeek to worth mentioning (#1003)

Resolves: #982

_includes/sections/search-engines.html

@@ -57,4 +57,5 @@ github="https://github.com/Qwant/"
   <li><a href="https://yacy.net/">YaCy</a> - A free software P2P search engine powered by its users.</a></li>  
   <li><a href="https://jivesearch.com/">Jive Search</a> - A free software search engine with a similar look and feel to Google.</a></li>  
   <li><a href="https://metager.de/en/">MetaGer</a> - An open source metasearch engine, which is based in Germany. It focuses on protecting the user's privacy.</li>
+  <li><a href="https://www.mojeek.com/">Mojeek</a> - Independent and unbiased search results with no user tracking.</li>
 </ul>