Revert team connection details in README

[vamahtani]

Reverted contact information in the README to the original state, removing the hardcoded Teams channel deep link and restoring the booking link and team email.

[Carlos Robles (croblesm)]

Thanks vamahtani. I'd like to request a couple of changes here before this lands.

Let's not publish the Teams channel deep link in the public README. A few reasons:

• The link only works for people already inside our tenant. External preview participants who
  click it will hit an access-denied wall, so it does not actually help the audience it is meant
  for.
• It exposes internal identifiers (tenant, group, and channel IDs) in a public repo, and our
  docs avoid internal Microsoft references by convention.
• This is an NDA preview, so the channel should stay invite-only. The existing wording handles
  that correctly: the link is delivered in the welcome email to confirmed participants rather
  than posted publicly.

So I would keep the gated phrasing:

• Real-time conversation: the private Teams channel shared with you in the welcome email

Also, this change removes the booking link and team email. Those are our most external-friendly
contact paths, so let's keep them:

• Connect with the team: book a session or email
  azuresqldb-container@microsoft.com

On real-time chat more broadly: for this Private Preview the gated Teams channel is the right
fit, since the cohort is known and under NDA. If we want a more open, developer-style community
space, I would suggest standing up something like Discord for Public Preview or GA, rather
than moving a small NDA cohort onto a consumer platform now. Happy to plan that separately.

Net, the version on main already has the safer setup, so this mostly comes down to keeping the
booking link and email and not hardcoding the Teams link.

Thanks again!

[Carlos Robles (croblesm)]

No longer needed.