Bug 571227 - [February 2021] Newsletter Coding Support - Add 3 articles and committer profile - Update images in a2 and news home - Add community updates - Add 2021 Jan newsletter to archive - Add Mailchimp and newsletter title - Update edge of things register link of the image Signed-off-by: Yi Liu <yi.liu@eclipse-foundation.org> Change-Id: I09793b78461d95aacd4fff1bef2139c436fbb993