MB-10666: Add more examples for IBR.

Change-Id: I94b7cd3d36d8b5469d1b17124460b7cb06cb6334
Reviewed-on: http://review.couchbase.org/35201
Reviewed-by: Bin Cui <bin.cui@gmail.com>
Tested-by: Bin Cui <bin.cui@gmail.com>