Add Getting Started guide

Basic instructions on how to set up VIM3L and the emulator and how to
run tests. Written in Markdown and kept in tree so they are public.

Test: n/a
Change-Id: I3bf3aed5f6bc6a9a93f8937d6a7bd885a475097d
3 files changed
tree: 4f12e511565e1c9efae939a6e625a7f81c5ea4d4
  1. docs/
  2. .clang-format
  3. PREUPLOAD.cfg