Update to new documentation URL

[kneth]

Description

Fixes #

TODO

• Changelog entry
• Tests

[papafe]

Looks good! Congratulation on your first contribution 😁

[nirinchev]

There's a bunch of API docs that also need to be updated. If you grep for docs.mongodb.com you can find those.

[papafe]

Looks good, just a couple of comments

[coveralls-official]

Pull Request Test Coverage Report for Build 8755920508

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 1 of 3 (33.33%) changed or added relevant lines in 3 files are covered.
• 8 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.005%) to 81.023%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
Realm/Realm/Helpers/AsyncHelper.cs	0	1	0.0%
Realm/Realm/Schema/ObjectSchema.cs	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
Realm/Realm/Handles/AppHandle.cs	8	94.89%

Totals
Change from base Build 8598129525:	-0.005%
Covered Lines:	6788
Relevant Lines:	8230

---

💛 - Coveralls

[papafe]

Apart from one comment, I think it's ready to merge