Add deployment docs

Author: mxstbr

README.md

@@ -19,7 +19,7 @@ With less than 50 lines of code this service is the smallest analytics you'll ev
 2. `npm install` to install the dependencies.
 3. `npm start` to start the service.
 
-And that's it! 🎉
+And that's it! 🎉 (see [`deployment.md`](./deployment.md) for deployment instructions)
 
 ### Tracking views
 

deployment.md

@@ -0,0 +1,32 @@
+# Deployment
+
+Deploying this service is a short two step process. This assumes you already have a server with an OS of your choice that runs Node setup, if not refer to the [acquiring a server](#acquiring-a-server) section.
+
+1. Upload the files of the service to your server and start the service
+2. Setup `nginx` as a reverse proxy to make your service publicy accessible
+
+This is what my `nginx` conf looks like in `/etc/nginx/sites-available/default`:
+
+```nginx
+server {
+        listen 80;
+        server_name yourserver.com;
+
+        location ~^.*$ {
+                proxy_set_header X-Real-IP  $remote_addr;
+                proxy_set_header X-Forwarded-For $remote_addr;
+                proxy_set_header Host $host;
+                proxy_pass http://localhost:3000;
+        }
+}
+```
+
+(note that I have no idea what I'm doing here, this was copied from [this tutorial](https://www.digitalocean.com/community/tutorials/how-to-configure-nginx-as-a-reverse-proxy-for-apache))
+
+## Acquiring a server
+
+If you don't have a server to deploy this on just yet, here is what I do:
+
+I use and like [DigitalOcean](https://m.do.co/c/d371ed7f99af) (referral link) for my servers. A simple, 5$/month droplet will suffice to run this service reliably. (upgrading to more power in case of big traffic is two clicks away too)
+
+Make sure to choose the `NodeJS x.x.x on 16.04` (where `x.x.x` is the highest version number you can find) one-click app when creating the droplet to get the server fully setup with Node and Ubuntu.