message: fixed readme icon
diff: -<img src="src/icons/icon.png" alt="logo" height="120" align="right" />
  +<img src="src/icons/icon128.png" alt="logo" height="128" align="right" />
  -# Selenium IDE &middot; [![Build Status](https://travis-ci.org/applitools/modifier-keys.svg?branch=master)](https://travis-ci.org/SeleniumHQ/selenium-ide)
  +# Selenium IDE &middot; [![Build Status](https://travis-ci.org/SeleniumHQ/selenium-ide.svg?branch=master)](https://travis-ci.org/SeleniumHQ/selenium-ide)
  _[WIP] An integrated development environment for Selenium scripts_
  