Markdown list fix.
Merge pull request #842 from blai/express-stack

fixed/enhanced grunt install script, updated readme.md
Merge branch 'express-stack' of https://github.com/yeoman/yeoman into express-stack

* 'express-stack' of https://github.com/yeoman/yeoman:
  fixed/enhanced grunt install script, updated readme.md
Reverting changes in Yeoman 0.9.6.x which made their way into this branch.
Adding links, tweaks.
Adding further instructions.
Adding bug reporting note.
Fix attempt #2 for crud generators
Adding clone information.
add more pre-install instructions