Guide: Deploy Zola with Layer0 (#1704)

docs/content/documentation/deployment/layer0.md

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+title = "Layer0"
+weight = 50
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+
+[Layer0](https://www.layer0.co) is an all-in-one platform to develop, deploy, preview, experiment on, monitor, and run your headless frontend. It is focused on large, dynamic websites and best-in-class performance through EdgeJS (a JavaScript-based Content Delivery Network), predictive prefetching, and performance monitoring. Layer0 offers a free tier.
+
+If you don't have an account with Layer0, you can sign up [here](https://app.layer0.co/signup).
+
+## Manual deploys
+
+For a command-line manual deploy, follow these steps:
+1. Install the Layer0 CLI: 
+```bash
+npm i -g @layer0/cli
+```
+
+2. Create a package.json at the root of your project with the following:
+```js
+{
+  "name": "zola",
+  "version": "1.0.0",
+  "scripts": {
+    "build": "zola build",
+    "layer0:dev": "0 dev",
+    "layer0:buid": "0 build",
+    "layer0:deploy": "0 deploy"
+  },
+  "dependencies": {},
+  "devDependencies": {}
+}
+```
+
+3. Initialize your project with:
+```bash
+0 init
+```
+
+4. Update routes.js at the root of your project to the following:
+```js
+// This file was added by layer0 init.
+// You should commit this file to source control.
+
+import { Router } from '@layer0/core/router'
+
+export default new Router().static('public', ({ cache }) => {
+  cache({
+    edge: {
+      maxAgeSeconds: 60 * 60 * 60 * 365,
+      forcePrivateCaching: true,
+    },
+    browser: {
+      maxAgeSeconds: 0,
+      serviceWorkerSeconds: 60 * 60 * 24,
+    },
+  })
+})
+```
+
+5. Deploy with:
+```bash
+0 deploy
+```