**What kind of change does this PR introduce?**
Add how to disable timeout for `page.pdf()`.
**Summary**
This was mentioned in the PR that adding this feature
https://github.com/puppeteer/puppeteer/pull/7508 But it has lost at
https://github.com/puppeteer/puppeteer/pull/8593.
I'm not sure why this was removed, but I think this info is useful for
users.
**Does this PR introduce a breaking change?**
no
This PR updates the docs regarding configuring puppeteer. In addition,
some changes have been made to the documentation generator to show
default values on the documentation site.
Also fixes: https://github.com/puppeteer/puppeteer/pull/9144
