How to install unidecode?
unidecode 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 unidecode
SuperRepo does not maintain unidecode. We only provide an automated index for Kodi users to have easy access to unidecode and other addons for Kodi. We are not affiliated with the developers (Tomaz Solc (Tomaz.solc[AT]tablix.org)) and do not provide help for this particular addon.