chore: regenerate README

[yoshi-automation]

This PR was generated using Autosynth. 🌈

Log from Synthtool

2021-04-14 00:44:11,917 synthtool [DEBUG] > Executing /root/.cache/synthtool/java-dialogflow/.github/readme/synth.py.
On branch autosynth-readme
nothing to commit, working tree clean
2021-04-14 00:44:13,213 synthtool [DEBUG] > Wrote metadata to .github/readme/synth.metadata/synth.metadata.

Full log will be available here:
https://source.cloud.google.com/results/invocations/c80cd3d5-b94e-4fcf-9286-b2b79f449346/targets

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

[codecov]

Codecov Report

Merging #516 (0baba5b) into master (c816d06) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #516   +/-   ##
=========================================
  Coverage     76.96%   76.96%           
  Complexity     1889     1889           
=========================================
  Files           156      156           
  Lines         12709    12709           
  Branches        177      177           
=========================================
  Hits           9781     9781           
  Misses         2695     2695           
  Partials        233      233           

---

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 c816d06...0baba5b. Read the comment docs.