MB-11626 Note Snappy dependency in README.md
MB-11626 Note Snappy dependency in README.md

Change-Id: Ie3c671fda6decd31c0e8f0ba0d2b0c9ce729cd02

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