|#000| updated readme to explain gradle tasks
|#000| updated readme to explain gradle tasks

USAID-DELIVER-PROJECT/elmis,kelvinmbwilo/vims,joshzamor/open-lmis,jasolangi/jasolangi.github.io,USAID-DELIVER-PROJECT/elmis,USAID-DELIVER-PROJECT/elmis,OpenLMIS/open-lmis,kelvinmbwilo/vims,vimsvarcode/elmis,joshzamor/open-lmis,jasolangi/jasolangi.github.io,vimsvarcode/elmis,joshzamor/open-lmis,vimsvarcode/elmis,vimsvarcode/elmis,joshzamor/open-lmis,OpenLMIS/open-lmis,jasolangi/jasolangi.github.io,USAID-DELIVER-PROJECT/elmis,kelvinmbwilo/vims,vimsvarcode/elmis,kelvinmbwilo/vims,OpenLMIS/open-lmis,OpenLMIS/open-lmis