updated readme

README.md

@@ -6,11 +6,33 @@ for [Nushell](http://nushell.sh), a data driven document language.
 
 ## Features
 
-* Syntax highlighting
-* Auto-indentation
+* Syntax highlighting grammar
+* Nushell theme that tries to match Nushell's coloring
 
 ## Known Issues
 
 See [our Github repository](https://github.com/nushell/vscode-nushell-lang)
 for active issues.
 
+## Regex Engine
+
+VSCode uses a regular expressions that is based on Ruby for syntax highlighting. [This is a good site](https://rubular.com/) to test and try out these regular expressions.
+
+## Build Process
+
+We pretty much followed [these instructions](https://code.visualstudio.com/api/get-started/your-first-extension) for building this extension. And [this link](https://code.visualstudio.com/api/working-with-extensions/publishing-extension) for packaging the extension.
+
+To summarize:
+1. npm install -g yo generator-code
+2. yo code
+3. chose `New Language Support` and filled out the rest of the questions
+4. npm install -g vsce
+5. update the readme and package.json
+6. vsce package
+7. code --install-extension vscode-nushell-lang-0.0.2.vsix or alternatively you can do ctrl/cmd-shift-p Extensions:Install From VSIX...
+
+If you have all these tools already installed you should be able to clone this repo and just do a `vsce package` to get a vsix file that you can install in vscode.
+
+## Help
+
+We are happily accepting pull requests to make this better. :)