Update README.md

Author: osixia

README.md

@@ -8,7 +8,7 @@
 
 Latest release: 0.6.11 - phpLDAPadmin 1.2.3 (with php5.5 patch) - [Changelog](CHANGELOG.md) | [Docker Hub](https://hub.docker.com/r/osixia/phpldapadmin/) 
 
-A docker image to run phpLDAPadmin.
+**A docker image to run phpLDAPadmin.**
 > [phpldapadmin.sourceforge.net](http://phpldapadmin.sourceforge.net)
 
 - [Quick start](#quick-start)