Readme update

Author: markus-perl

README.md

@@ -34,7 +34,7 @@ Open your command line and run (curl needs to be installed):
 $ bash <(curl -s "https://raw.githubusercontent.com/markus-perl/ffmpeg-build-script/master/web-install.sh?v1")
 
 # With GPL and non-free codes, see https://ffmpeg.org/legal.html 
-$ bash <(curl -s "https://raw.githubusercontent.com/markus-perl/ffmpeg-build-script/master/web-install.sh?v1")
+$ bash <(curl -s "https://raw.githubusercontent.com/markus-perl/ffmpeg-build-script/master/web-install-gpl-and-non-free.sh?v1")
 ```
 
 This command downloads the build script and automatically starts the build process.