Update README.md

Author: xchopin

README.md

@@ -100,6 +100,7 @@ Take a look at some of the amazing projects built with electron-vue. Want to hav
 * [**Data-curator**](https://github.com/ODIQueensland/data-curator): Share usable open data.
 * [**Bookmark**](https://github.com/mrgodhani/bookmark): Desktop app to manage bookmarked links using Atom Electron and Vue.js
 * [**Uber Run**](https://github.com/break-enter/uberrun): Simple automation desktop app to download and organize your tax invoices from Uber.
+* [**Apollo**](https://github.com/helados/Apollo): Convert YouTube videos (and more) to .mp3 files
 * [**Netsix**](https://github.com/pulsardev/netsix): Share videos with your friends in a real peer-to-peer manner using WebRTC.
 * [**code-notes**](https://github.com/lauthieb/code-notes): A simple code snippet manager for developers built with Electron & Vue.js.
 * [**Pomotroid**](https://github.com/Splode/pomotroid): A simple and visually-pleasing Pomodoro timer