chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-02-26 01:21:26,282 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-errorreporting/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-02-26 01:21:27,886 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/55815901-3c1c-4eb6-a91f-e4b22a2cb528/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #450 (8d3e77f) into master (44d5536) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #450   +/-   ##
=========================================
  Coverage     67.98%   67.98%           
  Complexity      119      119           
=========================================
  Files            18       18           
  Lines           784      784           
  Branches         11       11           
=========================================
  Hits            533      533           
  Misses          241      241           
  Partials         10       10           

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[yoshi-approver]

Rubber stamped PR!