Update README.md documentation file

README.md

@@ -1,2 +1,28 @@
 # snapshot-cleaner
 Tools for clear old bem-site data snapshots
+
+[![Coveralls branch](https://img.shields.io/coveralls/bem-site/snapshot-cleaner/master.svg)](https://coveralls.io/r/bem-site/snapshot-cleaner?branch=master)
+[![Travis](https://img.shields.io/travis/bem-site/snapshot-cleaner.svg)](https://travis-ci.org/bem-site/snapshot-cleaner)
+[![David](https://img.shields.io/david/bem-site/snapshot-cleaner.svg)](https://david-dm.org/bem-site/snapshot-cleaner)
+[![David](https://img.shields.io/david/dev/bem-site/snapshot-cleaner.svg)](https://david-dm.org/bem-site/snapshot-cleaner#info=devDependencies)
+
+
+## Testing
+
+Run tests:
+```
+npm run mocha
+```
+
+Run tests with istanbul coverage calculation:
+```
+npm run istanbul
+```
+
+Run codestyle verification (jshint and jscs)
+```
+npm run codestyle
+```
+
+Maintainer @tormozz48
+Please send your questions and proposals to: tormozz48@gmail.com