Create README.md

Author: wvanheemstra

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+# 400 - Building the New React Monorepo
+
+## 100 - Test the Built Application
+
+First, let's serve the application:
+
+```
+npx nx serve hatch_project
+```
+
+This will:
+- Start a development server
+- Usually on http://localhost:4200
+- Auto-reload on changes
+
+## 200 - Set up Continuous Integration
+
+To set up CI with GitHub Actions:
+
+a. Create the workflow file:
+
+```
+mkdir -p .github/workflows
+```
+
+b. Create the CI configuration:
+
+```
+name: CI
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+
+jobs:
+  main:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'npm'
+      - run: npm cache clean --force
+      - run: npm ci
+      - run: npm install -g @nrwl/cli
+      - run: |
+          npm install --save-dev @swc-node/register @swc/core \
+          @nx/webpack webpack-cli \
+          @nx/eslint-plugin eslint-plugin-playwright \
+          @playwright/test jest \
+          @nx/jest @nx/react @nx/eslint @nx/playwright
+      - run: npx nx run-many -t build --verbose
+      - run: npx nx run-many -t test
+```
+.github/workflows/ci.yml
+
+
+MORE...