pm: replace forever with nodemon

Forever is stale (+1 year with no maintenance) and has this on their README, "For new installations we encourage you to use pm2 or nodemon."

en/advanced/pm.md

@@ -21,7 +21,7 @@ A process manager is somewhat like an application server: it's a "container" for
 
 The most popular process managers for Express and other Node.js applications are:
 
-- **[Forever](https://github.com/foreverjs/forever){: target="_blank"}**: A simple command-line interface tool to ensure that a script runs continuously (forever). Forever's simple interface makes it ideal for running smaller deployments of Node.js apps and scripts.
+- **[Nodemon](https://nodemon.io){: target="_blank"}**: Monitor for any changes in your source and automatically restart your server.
 - **[PM2](https://github.com/Unitech/pm2){: target="_blank"}**: A production process manager for Node.js applications that has a built-in load balancer. PM2 enables you to keep applications alive forever, reloads them without downtime, helps you to manage application logging, monitoring, and clustering.
 - **[StrongLoop Process Manager (Strong-PM)](http://strong-pm.io/)**: A production process manager for Node.js applications with built-in load balancing, monitoring, and multi-host deployment.   Includes a CLI to build, package, and deploy Node.js applications to a local or remote system.
 - **SystemD**: The default process manager on modern Linux distributions, that makes it simple to run a Node application as a service. For more information, see ["Run node.js service with systemd" by Ralph Slooten (@axllent)](https://www.axllent.org/docs/view/nodejs-service-with-systemd/).