Updated building.md

Added Linux building instructions

Author: bem13

docs/building.md

@@ -1,3 +1,35 @@
 ## Building/Compiling LiveMe Pro Tools
 
-*This document will contain directions on how to compile LiveMe Pro Tools from source when we have time to write the steps.*
+## Building on Linux
+First of all, you will need to install Node.js and make sure it works.
+- [Follow the instructions provided here to install it](https://nodejs.org/en/download/package-manager/)
+- [Then follow these instructions to test if it works correctly](https://www.electronjs.org/docs/tutorial/development-environment#setting-up-linux)  
+If both commands return a version number, you should be good to go.
+
+If you've been using LMPT for a while, you probably want to back up your settings, bookmarks, etc. before you build a new version. Copy the following files from `/home/your_username/.config/Electron` to some safe location:  
+- Preferences
+- Settings
+- bookmarks.json
+- downloaded.json
+- errored.json
+- follows.json
+- ignored.json
+- profiles.json
+- queued.json
+- watched.json
+
+1. Clone the repository to some directory:  
+`git clone https://github.com/thecoder75/liveme-pro-tools.git`
+
+2. `cd` into that directory:  
+`cd liveme-pro-tools`
+
+3. Issue the command `npm install` to download the dependencies
+
+4. Issue `npm start` to start the app
+
+That's it!  
+If you want to work on the code, you'll need to close all running instances of the app, issue the command `npm rebuild` and restart the app to see your changes.
+
+## Building on Windows
+TODO