[doc] Finish spec for naive schema
[doc] Finish spec for naive schema

- NOTE: when inserting value, string should use single quote instead of
double quote

xephonhq/xephon-k,xephonhq/xephon-k,xephonhq/xephon-k,xephonhq/xephon-k,xephonhq/xephon-k,xephonhq/xephon-k