Update README.md

Author: WyattSL

README.md

@@ -1,2 +1,15 @@
 GreyScript formatting, highlighting, and other cool features for [Grey Hack](https://greyhackgame.com).<br>
-Report bugs [here](https://github.com/WyattSL/greyscript/issues).
+Report bugs [here](https://github.com/WyattSL/greyscript/issues).
+
+## Usage
+Greyscript's syntax highlighting (*should*) automatically activate if you edit a `.gs` or `.src` file, but to enable it manually, use CTRL+K, CTRL+M and select `Greyscript`.
+
+
+To use commands, press CTRL+SHIFT+P to view the command bar, and enter `Greyscript:`.
+
+Greyscript has a `Goto Error` command, which *should* be able to take the error line given from a program, and translate it to the actual line. Grey Hack has (*or had?*) a known bug where the line given would sometimes be off by an amount, due to certain circumstances.
+
+Greyscript also has a `Minify` command, which *should* able to minify the current file.
+
+## Settings
+If you decide that you do not like some of the awesome features provided by the extension, you may disable certain aspects in the [settings menu](https://code.visualstudio.com/docs/getstarted/settings) of Visual Studio Code.