readme: updates about m52, etc.

readme.md

@@ -10,12 +10,10 @@
 [![Build Status](https://travis-ci.org/GoogleChrome/lighthouse.svg?branch=master)](https://travis-ci.org/GoogleChrome/lighthouse)
 [![Coverage Status](https://coveralls.io/repos/github/GoogleChrome/lighthouse/badge.svg?branch=master)](https://coveralls.io/github/GoogleChrome/lighthouse?branch=master)
 
-_status: prototype extension and CLI available for testing_
+_status: ready for use! please report any issues or questions you have_
 
 ## Install Chrome extension
 
-Requires Chrome version 52+
-
 [chrome.google.com/webstore/detail/lighthouse/blipmdconlkpinefehnmjammfjpmpbjk](https://chrome.google.com/webstore/detail/lighthouse/blipmdconlkpinefehnmjammfjpmpbjk)
 
 ## Install CLI
@@ -45,12 +43,14 @@ lighthouse --help
 ```sh
 git clone https://github.com/GoogleChrome/lighthouse
 cd lighthouse
-
-# will be cleaner soon.
-cd lighthouse-core
 npm install
 ```
 
+#### Run
+```sh
+node lighthouse-cli http://example.com
+```
+
 ## Custom run configuration
 
 You can supply your own run configuration to customize what audits you want details on. Copy the [default.json](https://github.com/GoogleChrome/lighthouse/blob/master/lighthouse-core/config/default.json) and start customizing. Then provide to the CLI with `lighthouse --config-path=$PWD/myconfig.json <url>`