Add small fix on the Readme

README.md

@@ -7,16 +7,16 @@ All you have to do is to specify where your music is stored, and Sonerezh will
 build its database based on the audio file's metadata. Then you can browse your
 music library through a simple and intuitive Web UI.
 
-Let's try the latest version on [sonerezh.bzh/demo]!
+:arrow_right: Let's try the latest version on [sonerezh.bzh/demo]!
 
 Follow us on [Twitter] if you like the project, and don't forget to [support it
 making a donation].
 
-The standard installation instruction are available in the documentation on
+The **standard installation instruction are available in the documentation** on
 [sonerezh.bzh]. If you want to contribute to the project or if you prefer to use
 Git and Composer you can follow the steps below.
 
-## Installation using Git and Composer
+## Installation using Git and Composer (for developers)
 
 You must have [Composer] installed and ready to download the Sonerezh's
 dependencies. You will also need PHP (obviously) and at least ``php-mysql`` or