tree 0d46f56c620bf7c9bcc60f10ab418fd527eac7bf
parent 74f01067e7485403c46f6ee99a7b120ddca87113
author David B. Kinder <david.b.kinder@intel.com> 1556127256 -0700
committer Anas Nashif <anas.nashif@intel.com> 1558489220 -0400

doc: add references to builds mailing list

builds@lists.zephyrproject.org archives the CI build results for every
and nightly build.  Add references to this in the contribution
guidelines and introduction (pulled from README).

Also added a reference to the "Asking for Help" doc (there was a note to
add this once that doc was merged).

Fixes: #15652

Signed-off-by: David B. Kinder <david.b.kinder@intel.com>