Update Clang static analysis Markdown doc.

Update Clang static analysis Markdown doc.
This CL adds additional information pertaining to the proper use
and maintenance of the Clang static analyzer in Chrome.

R=wez@chromium.org

Bug: 
Change-Id: Ie421d79440051d9285d6ead0f42eb2c4d0a69326
Reviewed-on: https://chromium-review.googlesource.com/535305
Commit-Queue: Kevin Marshall <kmarshall@chromium.org>
Reviewed-by: Wez <wez@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486241}

CrOS-Libchrome-Original-Commit: 089565ece772d21830aa92f89cc9106e2aa16d49
1 file changed
tree: ef1462e3526d3c32e3f43eeeab75568754de789b
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/