Improve documentation - Update the link to chat room.

[ishubham21]

Under the 'First Steps' section, it is mentioned that to join the conversation, contributors should head on to the Slack channel.

But, when the contributors reach the Slack channel, Slack Welcome Bot says that to join the discussion open the link 'https://chat.mozilla.org/#/group/+devtools-team:mozilla.org'

Can we update this link in the docs here, in this repository?

[violasong]

Thanks for filing this! Forwarding this to @janodvarko

[janodvarko]

@ishubham21 thank you for the report.

When I click on the "Firefox DevTools Slack" link (i.e. "https://devtools-html-slack.herokuapp.com/") I am forwarded to this page:

Which seems to be correct. What page do you see?

Honza

[ishubham21]

Thank you for your consideration @janodvarko. You are absolutely correct, sir. We're redirected to the Slack-Page of the organization. However, when we reach the slack channel, the bot reports with the message that this channel isn't functional anymore and that we should head-on to the given link i.e. https://chat.mozilla.org/#/group/+devtools-team:mozilla.org. I'm attaching a screenshot for the same.

Thus, my question is, "If we ultimately have to move to the chat.mozilla.org, can we remove the link to the slack channel and replace it with the link to the chat channel of Mozilla?"

I'm sorry for any inconvenience caused, I'm still a beginner in open-source and I'm learning to be more precise.