chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-01-07 22:21:47,927 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-accessapproval/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-01-07 22:21:48,743 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/095c2731-1f78-4f8f-b962-40f84bf9ea6c/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #303 (4685f86) into master (dc7b5e9) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #303   +/-   ##
=========================================
  Coverage     77.75%   77.75%           
  Complexity       64       64           
=========================================
  Files             6        6           
  Lines           472      472           
  Branches          2        2           
=========================================
  Hits            367      367           
  Misses          103      103           
  Partials          2        2           

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[yoshi-approver]

Rubber stamped PR!