Add information about slack channel to mcuboot.com

Description

It seems that our slack isn't very discoverable. I set the topic in freenode's #mcuboot channel to the Slack invite, and we got a few more people from that. But there is still some conversation going on over in IRC. We should probably add information about the channel to the mcuboot.com webpage, as well as to our documentation.

Status

Assignee

Fabio Utzig

Reporter

David Brown

Labels

None

Fix versions

Priority

Medium