installation-instructions.md

@@ -125,7 +125,7 @@ There is a package on the official Debian repository for the unstable (``sid``)
 apt-get install python3-graph-tool
 ```
 
-For other [Debian](http://www.debian.org/) or [Ubuntu](http://www.ubuntu.com/) releases, add the following line to your `/etc/apt/sources.list`,
+For other [Debian](http://www.debian.org/) or [Ubuntu](http://www.ubuntu.com/) releases, or if you want to install a newer version that has not yet made it into the official repository, add the following line to your `/etc/apt/sources.list`,
 ```
 deb [ arch=amd64 ] https://downloads.skewed.de/apt DISTRIBUTION main
 ```