chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-04-12 16:06:42,013 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-scheduler/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-12 16:06:43,431 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/ba1e3535-b227-42bd-959a-df61b0319f42/targets

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[yoshi-approver]

Rubber stamped PR!

[codecov]

Codecov Report

Merging #410 (8fff5af) into master (a51ed92) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #410   +/-   ##
=========================================
  Coverage     76.65%   76.65%           
  Complexity      162      162           
=========================================
  Files            12       12           
  Lines          1028     1028           
  Branches          6        6           
=========================================
  Hits            788      788           
  Misses          210      210           
  Partials         30       30           

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