Since the emulator under Windows is enabled, the patch changes
README to include the information of emulator under Windows.
It also changes README to Readme.md for better looking.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
Ruiyu Ni