Add nvm (#1198)

Author: Raymond Adams

README.md

@@ -384,6 +384,7 @@ Any comments, suggestions? [Let us know!](https://github.com/jaywcjlove/awesome-
 * [mycli](https://github.com/dbcli/mycli) - CLI for MySQL that can do auto-completion and syntax highlighting. [![Open-Source Software][OSS Icon]](https://github.com/dbcli/mycli) ![Freeware][Freeware Icon]
 * [ndm](https://720kb.github.io/ndm/) - Manage [npm](http://npmjs.org/) straight from the couch. [![Open-Source Software][OSS Icon]](https://github.com/720kb/ndm) ![Freeware][Freeware Icon]
 * [nushell](https://github.com/nushell/nushell) - nushell is a modern, GitHub-era shell written in Rust. [![Open-Source Software][OSS Icon]](https://sourceforge.net/projects/zsh/) ![Freeware][Freeware Icon]
+* [nvm](https://github.com/nvm-sh/nvm) - Node Version Manager is a POSIX-compliant bash script to manage multiple active node.js versions. [![Open-Source Software][OSS Icon]](https://github.com/nvm-sh/nvm) ![Freeware][Freeware Icon]
 * [pgcli](https://www.pgcli.com) - Pgcli is a command line interface for Postgres with auto-completion and syntax highlighting. [![Open-Source Software][OSS Icon]](https://github.com/dbcli/pgcli) ![Freeware][Freeware Icon]
 * [Rebound](https://github.com/shobrook/rebound/) - Instantly browse Stack Overflow results in your terminal when you get a compiler error. ![Open-Source Software][OSS Icon] ![Freeware][Freeware Icon]
 * [ripgrep (rg)](https://github.com/BurntSushi/ripgrep) - Very fast text searching tool similar to (but faster than) ack, ag or grep ![Freeware][Freeware Icon]