docs: 2.1.0 changelog

[faustbrian]

Proposed changes

Update the changelog with the version and date of the monday release.

Types of changes

• Docs (documentation only changes)

Checklist

• I have read the CONTRIBUTING documentation
• Lint and unit tests pass locally with my changes

[ghost]

@supaiku0 @air1one - please review this in the next few days. Be sure to explicitly select labels so I know what's going on.

If no reviewer appears after a week, a reminder will be sent out.

[codecov-io]

Codecov Report

Merging #2072 into develop will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #2072   +/-   ##
========================================
  Coverage    78.46%   78.46%           
========================================
  Files          331      331           
  Lines         7707     7707           
  Branches      1061     1068    +7     
========================================
  Hits          6047     6047           
  Misses        1629     1629           
  Partials        31       31

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[ghost]

@faustbrian The ci/circleci: test-node11-0 job is failing as of 47ba0fd3edaff69c1c1469d5a7a827cfbacf1f09. Please review the logs for more information.

Once you've pushed the fixes, the build will automatically re-run. Thanks!