* Update doc for AUTO and AUTO_BATCH

Signed-off-by: Chen Peter <peter.chen@intel.com>

* Update per the comments

Signed-off-by: Chen Peter <peter.chen@intel.com>

* Move default hint to THROUGHPUT section

Signed-off-by: Chen Peter <peter.chen@intel.com>

* Update docs/OV_Runtime_UG/automatic_batching.md

Co-authored-by: Yuan Xu <yuan1.xu@intel.com>