chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2020-10-27 23:59:47,202 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-functions/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working directory clean
2020-10-27 23:59:48,164 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/47e6c196-3443-496d-8521-96c208fa4319/targets

• To automatically regenerate this PR, check this box.

[yoshi-approver]

Rubber stamped PR!

[codecov]

Codecov Report

Merging #68 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master      #68   +/-   ##
=========================================
  Coverage     78.43%   78.43%           
  Complexity       85       85           
=========================================
  Files             6        6           
  Lines           728      728           
  Branches          4        4           
=========================================
  Hits            571      571           
  Misses          149      149           
  Partials          8        8           

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