chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-02-25 00:58:24,844 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-accessapproval/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-02-25 00:58:26,378 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/7f112c8a-2104-4c91-b575-8365d758b287/targets

• To automatically regenerate this PR, check this box.

[codecov]

Codecov Report

Merging #342 (ef0d465) into master (993f29f) will increase coverage by 1.13%.
The diff coverage is n/a.

@@             Coverage Diff              @@
##             master     #342      +/-   ##
============================================
+ Coverage     76.61%   77.75%   +1.13%     
- Complexity       57       64       +7     
============================================
  Files             6        6              
  Lines           449      472      +23     
  Branches          2        2              
============================================
+ Hits            344      367      +23     
  Misses          103      103              
  Partials          2        2              

Impacted Files	Coverage Δ	Complexity Δ
...ssapproval/v1/stub/AccessApprovalStubSettings.java	81.48% <0.00%> (+0.46%)	17.00% <0.00%> (+1.00%)
...accessapproval/v1/stub/GrpcAccessApprovalStub.java	93.82% <0.00%> (+0.48%)	14.00% <0.00%> (+1.00%)
...d/accessapproval/v1/AccessApprovalAdminClient.java	77.02% <0.00%> (+2.02%)	27.00% <0.00%> (+5.00%)

---

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 993f29f...ef0d465. Read the comment docs.

[yoshi-approver]

Rubber stamped PR!