chore: add GitHub Actions workflow for deploying to GitHub Pages and update README with build instructions

Author: route

.github/workflows/deploy.yml

@@ -0,0 +1,58 @@
+name: Deploy to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'website/**'
+      - '.github/workflows/deploy.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: website
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: npm
+          cache-dependency-path: website/package-lock.json
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Build website
+        run: npm run build
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: website/build
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

README.md

@@ -0,0 +1,84 @@
+git submodule init
+git submodule update
+
+### Build Errors
+
+If you encounter build errors:
+
+```bash
+npm run clear  # Clear Docusaurus cache
+npm install    # Reinstall dependencies
+npm run build  # Try building again
+```
+
+
+## 🚀 Quick Start
+
+### Prerequisites
+
+- Node.js 20 or higher
+- npm (comes with Node.js)
+
+### Installation
+
+```bash
+npm install
+```
+
+### Local Development
+
+```bash
+npm start
+```
+
+This command starts a local development server and opens up a browser window. Most changes are reflected live without having to restart the server.
+
+### Build
+
+```bash
+npm run build
+```
+
+
+
+# Website
+
+This website is built using [Docusaurus](https://docusaurus.io/), a modern static website generator.
+
+## Installation
+
+```bash
+yarn
+```
+
+## Local Development
+
+```bash
+yarn start
+```
+
+This command starts a local development server and opens up a browser window. Most changes are reflected live without having to restart the server.
+
+## Build
+
+```bash
+yarn build
+```
+
+This command generates static content into the `build` directory and can be served using any static contents hosting service.
+
+## Deployment
+
+Using SSH:
+
+```bash
+USE_SSH=true yarn deploy
+```
+
+Not using SSH:
+
+```bash
+GIT_USER=<Your GitHub username> yarn deploy
+```
+
+If you are using GitHub pages for hosting, this command is a convenient way to build the website and push to the `gh-pages` branch.