chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-04-13 12:21:12,222 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-vision/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-13 12:21:13,648 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/ffbe7c37-2e2c-42b8-9534-7d5811477f1b/targets

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[codecov]

Codecov Report

Merging #469 (d350210) into master (d042845) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #469   +/-   ##
=========================================
  Coverage     78.82%   78.82%           
  Complexity      743      743           
=========================================
  Files            48       48           
  Lines          5199     5199           
  Branches         82       82           
=========================================
  Hits           4098     4098           
  Misses         1001     1001           
  Partials        100      100           

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