am f7a8c0f7: cherrypick Change-Id: Icf0c7772901f742c36ba417e07cc5e299f72849a fix broken links, update the dev guide intro, and update sitemap file

* commit 'f7a8c0f78796ebbeb57381b145c0648d7bc6b84a':
  cherrypick Change-Id: Icf0c7772901f742c36ba417e07cc5e299f72849a fix broken links, update the dev guide intro, and update sitemap file
tree: ea8394774dd2af9d10699c0198d5639d47f212a6
  1. cmds/
  2. include/
  3. libs/
  4. opengl/
  5. services/
  6. vpn/
  7. MODULE_LICENSE_APACHE2
  8. NOTICE