Create GitHub Workflow to automatically deploy code

Context: Everytime new code is merged into master, I need to manually
deploy things using npm run deploy. In order to automate things, let's
introduce a GitHub Workflow that will accomplish this for us!

Solution: Introduce a GitHub Workflow that will build and deploy our
static site.

Fixes issue-183

Author: seanprashad

.github/workflows/deploy.yml

@@ -0,0 +1,18 @@
+name: Deploy to GitHub pages
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Generate and deploy static files
+        uses: actions/setup-node@v3
+        with:
+          node-version: '14'
+      - run: npm ci
+      - run: npm run deploy