pkg/lua: fix broken links
pkg/lua: fix broken links

basilfx/RIOT,authmillenon/RIOT,OlegHahm/RIOT,kYc0o/RIOT,yogo1212/RIOT,jasonatran/RIOT,miri64/RIOT,RIOT-OS/RIOT,RIOT-OS/RIOT,authmillenon/RIOT,miri64/RIOT,jasonatran/RIOT,ant9000/RIOT,yogo1212/RIOT,jasonatran/RIOT,OTAkeys/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,yogo1212/RIOT,OTAkeys/RIOT,yogo1212/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,OlegHahm/RIOT,jasonatran/RIOT,kaspar030/RIOT,authmillenon/RIOT,authmillenon/RIOT,kYc0o/RIOT,ant9000/RIOT,kYc0o/RIOT,yogo1212/RIOT,basilfx/RIOT,miri64/RIOT,yogo1212/RIOT,miri64/RIOT,kaspar030/RIOT,basilfx/RIOT,OlegHahm/RIOT,miri64/RIOT,ant9000/RIOT,authmillenon/RIOT,kaspar030/RIOT,basilfx/RIOT,basilfx/RIOT,ant9000/RIOT,OTAkeys/RIOT,RIOT-OS/RIOT,ant9000/RIOT,kYc0o/RIOT,authmillenon/RIOT,RIOT-OS/RIOT,jasonatran/RIOT,kaspar030/RIOT,kYc0o/RIOT,kaspar030/RIOT,OTAkeys/RIOT