chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-04-12 23:46:14,326 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-monitoring/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-12 23:46:15,585 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/c4deb9f8-4e82-4efa-a242-8101b9bc1c2e/targets

• To automatically regenerate this PR, check this box. (May take up to 24 hours.)

[codecov]

Codecov Report

Merging #487 (0d80166) into master (3690732) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #487   +/-   ##
=========================================
  Coverage     77.29%   77.29%           
  Complexity      577      577           
=========================================
  Files            42       42           
  Lines          3849     3849           
  Branches         79       79           
=========================================
  Hits           2975     2975           
  Misses          777      777           
  Partials         97       97           

---

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 3690732...0d80166. Read the comment docs.

[yoshi-approver]

Rubber stamped PR!