chore(docs): reduce warnings when generating docs (#6138)

* chore(docs): reduce warnings when generating docs

This is a bunch of small miscellaneous fixes that reduce the amount of
warnings logged when generating our new docs. The long term goal is to
get this list down to 0 warnings, but I'll do it in multiple PRs.

* satisfy doclint

new-docs/puppeteer.chromeargoptions.md

@@ -0,0 +1,23 @@
+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [puppeteer](./puppeteer.md) &gt; [ChromeArgOptions](./puppeteer.chromeargoptions.md)
+
+## ChromeArgOptions interface
+
+Launcher options that only apply to Chrome.
+
+<b>Signature:</b>
+
+```typescript
+export interface ChromeArgOptions 
+```
+
+## Properties
+
+|  Property | Type | Description |
+|  --- | --- | --- |
+|  [args](./puppeteer.chromeargoptions.args.md) | string\[\] |  |
+|  [devtools](./puppeteer.chromeargoptions.devtools.md) | boolean |  |
+|  [headless](./puppeteer.chromeargoptions.headless.md) | boolean |  |
+|  [userDataDir](./puppeteer.chromeargoptions.userdatadir.md) | string |  |
+