Updated readme.md to reflect the latest changes in directory structure
Merge pull request #8549 from ggam/patch-2

Updated readme.md to reflect the latest changes in directory structure
fixes #8559
Merge remote-tracking branch 'upstream/3.0.0-wip' into 3.0.0-sass

* upstream/3.0.0-wip:
  fixes #8559
  Updated readme.md to reflect the latest changes in directory structure