update readme (#195)
update readme (#195)

* update readme

* address comments

flutter/plugins,tvolkert/plugins,flutter/plugins,tvolkert/plugins,flutter/plugins,mehmetf/plugins,tvolkert/plugins,tvolkert/plugins,mehmetf/plugins,flutter/plugins,flutter/plugins,flutter/plugins,mehmetf/plugins,mehmetf/plugins,flutter/plugins,flutter/plugins,mehmetf/plugins