Updating connector docs to add authentication details

[Paultagoras]

No description provided.

[robot-clickhouse-ci-2]

This is an automated comment for commit 0a91679 with description of existing statuses. It's updated for the latest CI running

✅ Click here to open a full report in a separate page

Successful checks

Check name	Description	Status
CI running	A meta-check that indicates the running CI. Normally, it's in success or pending state. The failed status indicates some problems with the PR	✅ success
Docs Check	Builds and tests the documentation	✅ success
Mergeable Check	Checks if all other necessary checks are successful	✅ success
Vercel	There's no description for the check yet, please add it to tests/ci/ci_config.py:CHECK_DESCRIPTIONS	✅ success