Update install.md

docs/install.md

@@ -2,7 +2,7 @@
 ## Installation guide ##
 Before installation, please install libclangmm, see [installation guide](http://github.com/cppit/libclangmm/blob/master/docs/install.md).
 
-## Debian
+## Debian/Ubuntu
 ```sh
 sudo apt-get install pkg-config libboost-system-dev libboost-thread-dev libboost-filesystem-dev libboost-log-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev
 ```
@@ -29,6 +29,7 @@ make install
 
 ## Windows with Cygwin (https://www.cygwin.com/)
 **Make sure the PATH environment variable does not include paths to non-Cygwin cmake, make and g++.**
+
 Select and install the following packages from the Cygwin-installer:
 ```
 pkg-config libboost-devel libgtkmm3.0-devel libgtksourceviewmm3.0-devel xinit