chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2020-11-19 17:01:07,728 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-container/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-11-19 17:01:08,700 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/115f9d54-2054-461e-971b-8dc633531e7a/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #302 (6881000) into master (45367b2) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #302   +/-   ##
=========================================
  Coverage     81.91%   81.91%           
  Complexity      202      202           
=========================================
  Files             7        7           
  Lines          1570     1570           
  Branches          3        3           
=========================================
  Hits           1286     1286           
  Misses          282      282           
  Partials          2        2           

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[yoshi-approver]

Rubber stamped PR!