docs: Update for 1.1 release

- Update errata for 1.1 release
- Fix typos and errors

Change-Id: I46bdb45019fc5f43939a02ca125a42e55c055bd7
Signed-off-by: Mark Kavanagh <mark.b.kavanagh@intel.com>
Reviewed-By: Kevin Traynor <kevin.traynor@intel.com>
Reviewed-By: Meghan Halton <meghan.halton@intel.com>