♻️ add deployment workflow for docs

.github/workflows/deploy-docs.yml

@@ -0,0 +1,73 @@
+name: Deploy Bikram Sambat Docs
+
+on:
+  push:
+    branches: ['main']
+    paths: ['docs/**']
+
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: 'pages'
+  cancel-in-progress: true
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./docs
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'
+          cache: 'yarn'
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v2
+        with:
+          static_site_generator: next
+
+      - name: Restore cache
+        uses: actions/cache@v3
+        with:
+          path: |
+            .next/cache
+          # Generate a new cache whenever packages or source files change.
+          key: ${{ runner.os }}-nextjs-${{ hashFiles('**/yarn.lock') }}-${{ hashFiles('**.[jt]s', '**.[jt]sx') }}
+          restore-keys: |
+            ${{ runner.os }}-nextjs-${{ hashFiles('**/yarn.lock') }}-
+
+      - name: Install dependencies
+        run: yarn install
+
+      - name: Build Docs App
+        run: yarn next build
+
+      - name: Export Docs App
+        run: yarn next export
+
+      - name: Upload Docs App
+        uses: actions/upload-pages-artifact@v1
+        with:
+          path: ./out
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy Docs App
+        id: deployment
+        uses: actions/deploy-pages@v1