Create trigger_netlify_build.yml

feat: integrate external cpp-notes repo via Netlify build

This commit integrates content from the separate 'cpp-notes' repository into the portfolio website during the Netlify build process.

Key changes:

- **netlify.toml:** Modified the Netlify build command (`[build].command`) to:
    1. Clone the public 'cpp-notes' repository (https://github.com/dev-ai-kar/cpp-notes.git) into a '_cpp_notes' directory within the build environment.
    2. Execute the standard 'bundle exec jekyll build' command afterwards.
    This ensures the notes are available for Jekyll processing during each Netlify build.

- **_config.yml:** Added '_cpp_notes' to the 'collections' configuration.
    - Set 'output: true' to generate individual HTML pages for each note.
    - Defined the permalink structure as '/notes/cpp/:path.html' for the generated note pages.

This setup allows notes maintained in the 'cpp-notes' repository to be automatically pulled in and published as part of the main portfolio site whenever a Netlify build is triggered (e.g., by a push to this repo or via the build hook triggered by the 'cpp-notes' repo workflow).

Author: dev-ai-kar

.github/workflows/trigger_netlify_build.yml

@@ -0,0 +1,13 @@
+name: Trigger Netlify Build
+
+on:
+  push:
+    branches:
+      - main # Trigger on push to the 'main' branch of cpp-notes
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Trigger Netlify Build Hook
+        run: curl -X POST -d '{}' ${{ secrets.NETLIFY_BUILD_HOOK_URL }}