How to install m3u8?
m3u8 is available in the official Kodi repository which is included by default in Kodi. You can install this addon by going in Kodi to System >> Settings >> Addons >> Get Addons >> XBMC.org Addons or Kodi.tv Addons
About SuperRepo and m3u8
SuperRepo does not maintain m3u8. We only provide an automated index for Kodi users to have easy access to m3u8 and other addons for Kodi. We are not affiliated with the developers (globocom, Timewasted) and do not provide help for this particular addon.