Installation guide updated in order to disambiguate between the two open_ptrack folders.
Installation guide updated in order to disambiguate between the two open_ptrack folders.

chanbrown007/open_ptrack,OpenPTrack/open_ptrack,OpenPTrack/open_ptrack,chanbrown007/open_ptrack,team-diana/swissranger_camera,OpenPTrack/open_ptrack,team-diana/swissranger_camera,chanbrown007/open_ptrack