Add guidlines to how to format python files according to black formatter

Signed-off-by: hansinikarunarathne <107214435+hansinikarunarathne@users.noreply.github.com>

.github/workflows/python_formatter.yaml

@@ -7,6 +7,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
+
+      - name: Python Files Formatting Guidelines
+        run: |
+          echo "### Python Files Formatting Guidelines ###
+          If there is a formatting errors in your python files, 
+          1. First install black 
+             It requires Python 3.8+ to run.
+             Install with  "pip install black" and if you use pipx, install Black with "pipx install black"
+             If you want to format Jupyter Notebooks, install with pip install "black[jupyter]"
+
+          2. Run the command 
+              "python -m black {source_file_or_directory}" or
+              "black {source_file_or_directory}" 
+             to format python files. 
+          "
       
       - uses: psf/black@stable
         with: