Add space sub-config (#22)

Author: jeffryang24

package.json

@@ -17,7 +17,8 @@
 		"test": "ava"
 	},
 	"files": [
-		"index.js"
+		"index.js",
+		"space.js"
 	],
 	"keywords": [
 		"typescript",

readme.md

@@ -24,6 +24,20 @@ Add some ESLint config to your package.json (or `.eslintrc`):
 }
 ```
 
+Use the `space` sub-config if you want 2 space indentation instead of tabs:
+
+```json
+{
+	"name": "my-awesome-project",
+	"eslintConfig": {
+		"extends": [
+			"xo",
+			"xo-typescript/space"
+		]
+	}
+}
+```
+
 *Note:* If your `tsconfig.json` is not in the same directory as `package.json`, you will have to set the path yourself:
 
 ```json

space.js

@@ -0,0 +1,15 @@
+'use strict';
+const path = require('path');
+
+module.exports = {
+	extends: path.join(__dirname, 'index.js'),
+	rules: {
+		'@typescript-eslint/indent': [
+			'error',
+			2,
+			{
+				SwitchCase: 1
+			}
+		]
+	}
+};