Readme

1. Added Readme.md file to tests.
2. Updated the RunTests script.
Update readme.md

Format changes to readme.md
Test settings and vsmdi changes

Changes to settings file and vsmdi file to facilitate getting the
results folder as artifact in CI.
Merge branch 'Bug-821' of https://github.com/bhuvak/NuGetGallery into Bug-821
Merge pull request #886 from bhuvak/Bug-821

Updates to settings and csproj