Task: Notify a team channel about new software releases via Slack and GitHub

n8n workflow JSON:
{"id":"5ec2322573f7590007802e1f","name":"Extranet Releases","nodes":[{"name":"Slack","type":"n8n-nodes-base.slack","position":[560,550],"parameters":{"text":"=New release is available in {{$node[\"Github Trigger\"].json[\"body\"][\"repository\"][\"full_name\"]}} !\n{{$node[\"Github Trigger\"].json[\"body\"][\"release\"][\"tag_name\"]}} Details:\n{{$node[\"Github Trigger\"].json[\"body\"][\"release\"][\"body\"]}}\n\nLink: {{$node[\"Github Trigger\"].json[\"body\"][\"release\"][\"html_url\"]}}","as_user":true,"channel":"extranet-md","attachments":[],"otherOptions":{}},"credentials":{"slackApi":"Extranet-md"},"typeVersion":1},{"name":"Github Trigger","type":"n8n-nodes-base.githubTrigger","position":[350,550],"parameters":{"owner":"Mesdocteurs","events":["release"],"repository":"mda-admin-partner-api"},"credentials":{"githubApi":"Github API"},"typeVersion":1}],"active":true,"settings":{},"connections":{"Github Trigger":{"main":[[{"node":"Slack","type":"main","index":0}]]}}}