introduce github action for docs

Author: officialrajdeepsingh

.github/workflows/preview.yaml

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+name: GitHub Actions Vercel Preview Deployment
+env:
+  VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
+  VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
+on:
+  push:
+    branches:
+      - canary
+    paths:
+        - docs/**
+    
+jobs:
+  Deploy-Preview:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Vercel CLI
+        run: npm install --global vercel@canary
+      - name: Pull Vercel Environment Information
+        run: vercel pull --yes --environment=preview --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Build Project Artifacts
+        run: vercel build --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Deploy Project Artifacts to Vercel
+        run: vercel deploy --prebuilt --token=${{ secrets.VERCEL_TOKEN }}

.github/workflows/production.yaml

@@ -0,0 +1,24 @@
+name: GitHub Actions Vercel Production Deployment
+env:
+  VERCEL_ORG_ID: ${{ secrets.VERCEL_ORG_ID }}
+  VERCEL_PROJECT_ID: ${{ secrets.VERCEL_PROJECT_ID }}
+on:
+  push:
+    branches:
+      - main
+    paths:
+        - docs/**
+jobs:
+  Deploy-Production:
+    if: github.repository == 'frontendweb3/section-blog-theme'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Vercel CLI
+        run: npm install --global vercel@canary
+      - name: Pull Vercel Environment Information
+        run: vercel pull --yes --environment=production --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Build Project Artifacts
+        run: vercel build --prod --token=${{ secrets.VERCEL_TOKEN }}
+      - name: Deploy Project Artifacts to Vercel
+        run: vercel deploy --prebuilt --prod --token=${{ secrets.VERCEL_TOKEN }}