Merge "Docs: Updates NDK samples page and Vulkan landing page for launch." into mnc-docs am: a5f673f am: 9da6e91 am: 1373b2e
am: 2fec99b

* commit '2fec99b8407d2e1a09aa2b77c9bd47b565c8d033':
  Docs: Updates NDK samples page and Vulkan landing page for launch.

Change-Id: I0c532f572f2cb7be667fdfd5e05e30ddeb351915