fix markdown format

bonita/license.md

@@ -3,3 +3,4 @@ Bonita image includes two parts :
 -	Bonita Engine under [LGPL v2.1](https://www.gnu.org/licenses/old-licenses/lgpl-2.1.html)
 
 -	Bonita Portal under [GPL v2.0](http://www.gnu.org/licenses/old-licenses/gpl-2.0.html)
+