Change ref to default branch as main (#2519)

Signed-off-by: michael vincerra <michael.vincerra@intel.com>

.github/workflows/github-pages.yml

@@ -3,15 +3,15 @@ name: github-samples-app
 on:
  push:
   branches:
-  - master
+  - main
 
- workflow_dispatch: 
+ workflow_dispatch:
 
 #  schedule:
 #    - cron: '55 13 * * *'
 
-# Top-level default; empty/no permissions 
-permissions: {}  
+# Top-level default; empty/no permissions
+permissions: {} 
 
 jobs:
   pages:
@@ -33,36 +33,36 @@ jobs:
         ref: 'refs/heads/app/dev'
 
     - uses: actions/checkout@v3
-      name: Check out master # checks out master in subdirectory
+      name: Check out main # checks out main in subdirectory
       with:
-        ref: 'refs/heads/master'
-        path: master
-        
+        ref: 'refs/heads/main'
+        path: main
+
     - name: Build JSON DB
       run: |
         python3 -m pip install -r src/requirements.txt
-        echo master
-        python3 src/db.py master
+        echo main
+        python3 src/db.py main
 
-    - name: Remove JSON pre-prod  
-      run: |       
+    - name: Remove JSON pre-prod
+      run: |
         rm -rf src/docs/sample_db_pre.json
 
     - name: Build Sphinx
-      run: |    
+      run: |
         python3 -m sphinx -W -b html src/docs/ src/docs/_build/
         echo $PWD
         echo ${{ github.ref }}
 
     - name: Add GPU-Occupancy-Calculator
-      env: 
+      env:
         GPU_OCC_CALC: src/docs/_build/Tools/GPU-Occupancy-Calculator/
       run: |
         mkdir -p ${GPU_OCC_CALC}
-        cp -v ${{ github.workspace }}/master/Tools/GPU-Occupancy-Calculator/index.html ${GPU_OCC_CALC}/index.html
+        cp -v ${{ github.workspace }}/main/Tools/GPU-Occupancy-Calculator/index.html ${GPU_OCC_CALC}/index.html
 
     - name: Push docs
-      if: ${{ github.ref == 'refs/heads/master' }} # only if this workflow is run from the master branch, push docs
+      if: ${{ github.ref == 'refs/heads/main' }} # only if this workflow is run from the main branch, push docs
       env:
         GITHUB_USER: ${{ github.actor }}
         GITHUB_TOKEN: ${{ github.token }}