add deploy script (#6792)

.github/workflows/deploy-docs.yaml

@@ -0,0 +1,28 @@
+name: Docs CloudFlare Deploy
+on:
+    push:
+        - "4.x"
+    tags-ignore:
+        - v4*
+jobs:
+    deploy:
+        runs-on: ubuntu-latest
+        permissions:
+            contents: read
+            deployments: write
+        steps:
+            - uses: actions/checkout@v4
+            - uses: actions/setup-node@v4
+              with:
+                  cache: yarn
+                  node-version: '18'
+            - run: yarn install --frozen-lockfile
+            - run: yarn run build:docs
+            - name: Publish to Cloudflare Pages
+              uses: cloudflare/pages-action@v1
+              with:
+                  apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+                  accountId: 2238a825c5aca59233eab1f221f7aefb
+                  projectName: web3-js-docs
+                  directory: ./docs/build
+                  gitHubToken: ${{ secrets.GITHUB_TOKEN }}