Add webclient instructions for the captcha. (#271)
Add webclient instructions for the captcha. (#271)

* Add webclient instructions for the captcha.

Signed-off-by: Josh Berkus <josh@agliodbs.com>

* Update content/en/events/kcc2021/how-to-join.md

Co-authored-by: Bob Killen <99b7b6687202ac9b87bafcb69928bc19b3c20c79@gmail.com>
kubernetes/contributor-site,kubernetes/contributor-site,kubernetes/contributor-site