update readme [skip ci]

experimental/babel-preset-env/README.md

@@ -1,4 +1,4 @@
-# [WIP Do Not Use] babel-preset-env
+# [WIP 0.0.0] babel-preset-env
 
 > Babel preset for all envs.
 
@@ -8,41 +8,21 @@
 $ npm install --save-dev babel-preset-env
 ```
 
-## Usage
+## Usage via `.babelrc`
 
-### Via `.babelrc` (Recommended)
-
-**.babelrc**
-
-```json
-{
-  "presets": ["env"]
-}
-```
-
-### Via CLI
-
-```sh
-$ babel script.js --presets env
-```
-
-### Via Node API
-
-```javascript
-require("babel-core").transform("code", {
-  presets: ["env"]
-});
-```
-
-## Options
+### Options
 
 * `loose` - Enable "loose" transformations for any plugins in this preset that allow them (Disabled by default).
+* `modules` - Enable transformation of ES6 module syntax to another module type (Enabled by default to `"commonjs"`).
+  * Can be `false` to not transform modules, or one of `["amd", "umd", "systemjs", "commonjs"]`
 
 ```
 {
-  presets: [
+  "presets": [
     ["env", {
-      chrome: 49
+      "chrome": 49,
+      "loose": true,
+      "modules": false
     }]
   ]
 }