[edk2-platforms][PATCH v2 2/2] ReadMe.md: Update the build instructions

[Agyeman <prince.agyeman@intel.com>]

Updated the build instructions to include
the python script build instructions

Cc: Michael Kubacki <michael.a.kubacki@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Ankit Sinha <ankit.sinha@intel.com>

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Agyeman <prince.agyeman@intel.com>
---
 ReadMe.md | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/ReadMe.md b/ReadMe.md
index 72e332a476..947d428ce9 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -105,6 +105,20 @@ return back to the minimum platform caller.
 
 ### Build
 
+**Building with the python script**
+
+1. Open command window, go to the workspace directory, e.g. c:\Kabylake.
+2. Type "cd edk2-platforms\Platform\Intel
+3. Type "python BuildBios.py -p REPLACE_WITH_BOARD_NAME"
+
+* To view the supported platforms
+  * ``Type "python BuildBios.py -l"``
+
+* For more information
+  * ``Type "python BuildBios.py -h"``
+
+**Building with the batch scripts**
+
 For KabylakeOpenBoardPkg
 1. Open command window, go to the workspace directory, e.g. c:\Kabylake.
 2. Type "cd edk2-platforms\Platform\Intel\KabylakeOpenBoardPkg\KabylakeRvp3".
-- 
2.19.1.windows.1