chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2020-10-30 23:43:28,948 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-logging/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-10-30 23:43:29,819 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/94e405e0-9258-4708-8e06-769139a0f242/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #309 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #309   +/-   ##
=========================================
  Coverage     75.34%   75.34%           
  Complexity      593      593           
=========================================
  Files            42       42           
  Lines          3715     3715           
  Branches        259      259           
=========================================
  Hits           2799     2799           
  Misses          762      762           
  Partials        154      154           

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[yoshi-approver]

Rubber stamped PR!