Add README step to use the Google Web Toolkit SDK in the gwt-user project so that users can run GWT tests.

Also, fixes duplicate step 2 in the README.

Review at http://gwt-code-reviews.appspot.com/966802


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@9218 8db76d5a-ed1c-0410-87a9-c151d255dfc7
1 file changed