Updated README.md

.gitignore

@@ -1 +1,2 @@
 ugly.bat
+wishlist.txt

README.md

@@ -26,6 +26,7 @@ Only modern browsers are supported (IE11, latest Edge, latest Chrome, latest Fir
 ## Quick installation videos
 * [Debian 9.0 with Apache](https://fdossena.com/?p=speedtest/quickstart_deb.frag)
 * [Windows Server 2016 with IIS](https://fdossena.com/?p=speedtest/quickstart_win.frag)
+* [Ubuntu (External)](https://freedif.org/how-to-install-selfhosted-speedtest)
 
 Also, here's an [example config on Ubuntu 16 LTS](https://github.com/adolfintel/speedtest/issues/50)