Fixed grammatical errors. (#6246)
Fixed grammatical errors. (#6246)

* Fixed grammatical errors.

* Update druid.rst

mistercrunch/panoramix,airbnb/caravel,mistercrunch/panoramix,apache/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset,mistercrunch/panoramix,airbnb/superset,apache/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,apache/incubator-superset,apache/incubator-superset,airbnb/caravel,airbnb/superset,airbnb/superset,zhouyao1994/incubator-superset,airbnb/superset,airbnb/caravel,zhouyao1994/incubator-superset,mistercrunch/panoramix