chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2020-11-19 17:07:18,742 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-language/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-11-19 17:07:19,689 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/676c8603-58df-40bb-bb7f-b9546f721979/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #316 (0d0901e) into master (6acf8c0) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #316   +/-   ##
=========================================
  Coverage     72.84%   72.84%           
  Complexity      118      118           
=========================================
  Files            12       12           
  Lines           766      766           
  Branches          2        2           
=========================================
  Hits            558      558           
  Misses          206      206           
  Partials          2        2           

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[yoshi-approver]

Rubber stamped PR!