chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-04-30 18:16:27,488 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-securitycenter/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-30 18:16:29,153 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/386776a1-3843-4a79-8992-dac0941e88a7/targets

• To automatically regenerate this PR, check this box. (May take up to 24 hours.)

[codecov]

Codecov Report

Merging #474 (7da9c91) into master (d74545c) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #474   +/-   ##
=========================================
  Coverage     83.63%   83.63%           
  Complexity      548      548           
=========================================
  Files            18       18           
  Lines          4081     4081           
  Branches         62       62           
=========================================
  Hits           3413     3413           
  Misses          598      598           
  Partials         70       70           

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update d74545c...7da9c91. Read the comment docs.

[yoshi-approver]

Rubber stamped PR!