Fix some Issues in the README file (#273)
Fix some Issues in the README file (#273)

- mark string values by adding ' around them
- fix some indentation issues
- fix some issues that were found by Codacy in the README.md file
- add new lines between list items
madoar/ng2-archwizard,madoar/ng2-archwizard,madoar/ng2-archwizard