docs: Adding in the GettingStarted doc

This gets us started with some getting started documentation to help others get
started with working in the Wall-e tree.

Change-Id: I4d5097149e27943232ea4872fca13c86470d442b
1 file changed
tree: 36d6f4151a003ea71cb6634d476f226033fff5f0
  1. GettingStarted.md