[FAB-14188] Clarify CouchDB pagination docs
[FAB-14188] Clarify CouchDB pagination docs

Document that 'limit' passed into CouchDB queries will not be honored,
since Fabric manages the pagination between peer and CouchDB.

Change-Id: I9647163989c640c4e135bbf1b086b3830d3fcddc
Signed-off-by: David Enyeart <3d699cfec69cc11a9ba1c3a1aef3260ab163489b@us.ibm.com>
(cherry picked from commit 240fb7a1dca34460e1ea659ffb02bab9dde7275f)

xixuejia/fabric,xixuejia/fabric,xixuejia/fabric