added CI for defaults updating

.github/workflows/update_defaults.yaml

@@ -0,0 +1,31 @@
+name: CI
+
+on:
+  # Runs on Every Push
+  push:
+  # Runs on Pull Requests
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  defaults:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        design_types: ["openframe", "analog", "digital"]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: download README and gds files
+        run: |
+            mkdir -p $GITHUB_WORKSPACE/tmp_default_content/gds
+            if [ "${{ matrix.design_types }}" = "openframe" ]; then
+                repo_name="caravel_openframe_project"
+            elif [ "${{ matrix.design_types }}" = "analog" ]; then
+                repo_name="caravel_user_project_analog"
+            elif [ "${{ matrix.design_types }}" = "digital" ]; then
+                repo_name="caravel_user_project"
+            fi
+            curl -o $GITHUB_WORKSPACE/tmp_default_content/README_${{ matrix.design_types }}.md -L https://raw.githubusercontent.com/efabless/$repo_name/main/README.md
+
+            python3 $GITHUB_WORKSPACE/checks/defaults_check.py -i $GITHUB_WORKSPACE/tmp_default_content -d $GITHUB_WORKSPACE/_default_content