Merge "[Thread] add public newbie guide" into main am: 53f4a29816

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3007440

Change-Id: I9ed4dd54e606b30e865b5d8b1764a9a76c9c924c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>