Proofread GN docs and update links

Change-Id: Idb78bd2d8fdc6a194f1bda9db233f56fb21090eb
Reviewed-on: https://chromium-review.googlesource.com/573527
Commit-Queue: Quinten Yearsley <qyearsley@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#487492}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 55b93fe82e7fa4f1ea2a31d652b50968503fdb84
8 files changed
tree: 284f5f152749e986ae8e84ff1359e43048068fde
  1. tools/