Update README.md file to provide link to getting started guide & fix markdown problems
Location of document
https://gitlab.com/opencpi/osp/ocpi.osp.e3xx/README.md
Problem identified
The OSP readme needs to contain a "live" link to the E3xx OSP Documentation section on opencpi.gitlab.io. The bulleted list formatting in the "Notes" section also needs to be repaired and the typos corrected.
Acceptance criteria
The OSP readme, when displayed on gitlab, contains a link to the "E3xx OSP Documentation" section on opencpi.gitlab.io and formats correctly in markdown and is without typos.