Update README.md

adds the configure steps rather than deferring to the undercloud-live readme and adds note about overcloud horizon URI
Merge pull request #2 from marios/patch-1

Update README.md
Update README.md

Fix description for discovering IP address of notcompute for construction of overcloud horizon URI
Merge pull request #3 from marios/patch-2

Update README.md
Update README.md
Added Tuskar Start Script
Merge branch 'master' of github.com:mtaylor/tuskar_install
updated BROWSER sections to provide more detail
Update install.sh