Add html elements to built-in serialisers

[SimenB]

Summary
See #3230

Test plan
N/A

[codecov-io]

Codecov Report

Merging #3356 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3356   +/-   ##
=======================================
  Coverage   64.93%   64.93%           
=======================================
  Files         176      176           
  Lines        6514     6514           
  Branches        4        4           
=======================================
  Hits         4230     4230           
  Misses       2283     2283           
  Partials        1        1

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a9288e4...4950308. Read the comment docs.

[thymikee]

We could also mention ImmutableJS here

[SimenB]

@thymikee Added 😄

[cpojer]

I couldn't merge this one so I took it and pushed it to master. Thanks @SimenB. Man, Jest 20 is going to be so awesome.

[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.
Please note this issue tracker is not a help forum. We recommend using StackOverflow or our discord channel for questions.