[edk2-platforms/devel-MinPlatform] [PATCH v2 2/3] ReadMe.md: Update the build instructions

["Agyeman, Prince" <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>
Cc: Bowen Zhou<bowen.zhou@intel.com>
Cc: Shifei A Lu <shifei.a.lu@intel.com>

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Agyeman <prince.agyeman@intel.com>
---
 ReadMe.md | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/ReadMe.md b/ReadMe.md
index 72e332a476..a94d8051d6 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -105,6 +105,43 @@ 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"
+
+* BuildBios.py Arguments:
+
+  | Argument              | Function                            |
+  | ----------------------|-------------------------------------|
+  | -h, --help            | Show this help message and exit     |
+  | --platform, -p        | The platform to build               |
+  | --toolchain, -t       | Tool Chain to use in build process  |
+  | --DEBUG, -d           | Debug flag                          |
+  | --RELEASE, -r         | Release flag                        |
+  | --TEST_RELEASE, -tr   | Test Release flag                   |
+  | --RELEASE_PDB, -rp    | Release flag                        |
+  | --list, -l            | Lists available platforms           |
+  | --cleanall            | Cleans all                          |
+  | --capsule             | Capsule build enabled               |
+  | --silent              | Silent build enabled                |
+  | --performance         | Performance build enabled           |
+  | --fsp                 | Fsp build enabled                   |
+  |                                                             |
+
+* For more information on build options
+  * ``Type "python BuildBios.py -h"``
+
+* Configuration Files
+  * ``The edk2-platforms\Platform\Intel\Build.json file contains the default settings used by BuildBios.py``
+  * ``The default settings are under the DEFAULT_CONFIG field``
+  * ``Each board can have a settings JSON file that will override the edk2-platforms\Platform\Intel\Build.json settings``
+  * ``An example of a board specific settings:``
+    * ``edk2-platforms\Platform\Intel\KabylakeOpenBoardPkg\KabylakeRvp3\BuildConfig.json``
+
+
+**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