[SUBMARINE-1017] Update Slack link on the website

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.6.0
• Component/s: Doc
• Labels: documentation pull-request-available
• Assignee: Liang-Chun, Chen
• Reporter: Liang-Chun, Chen
• Created: 08/Sep/21 17:39
• Updated: 09/Sep/21 13:41
• Resolved: 09/Sep/21 13:41

Description

The old slack link is broken,  it need to be changed to a new one.

Delete the submarine-user slack link (based on previous meeting conclusion)

Issue Links

• links to: GitHub Pull Request #740