Minor corrections in README.md
Minor corrections in README.md

Change-Id: Ic6b21ad70468f40595679d0412a6eadb40b2e1f5

jinxuan/forestdb,couchbase/forestdb,joliss/forestdb,wurikiji/forestdb,sushmaad/forestdb,nvoron23/forestdb,sushmaad/forestdb,couchbase/forestdb,seem-sky/forestdb,yyangpan/forestdb,hisundar/forestdb,nvoron23/forestdb,zhaog/forestdb,wurikiji/forestdb,joliss/forestdb,seem-sky/forestdb,zhaog/forestdb,uvenum/forestdb,jinxuan/forestdb,yyangpan/forestdb,hisundar/forestdb,uvenum/forestdb