Add info about Site Icon in Help in General Settings page

[rabmalin]

It would be great to add some info about Site Icon in the Help in General Settings page.

[rabmalin]

Patch added.

[obenland]

Updated patch. Would a wordsmith mind taking a look at it? @helen, @jorbin, anyone else who has time?

[helen]

The changes to the bit about the title seem fine. There are some things that are a little awkward about the final sentence. For reference, currently in the patch:

Site Icon creates a browser icon (Favicon) and several app icons for your site. They are like an avatar for your site, giving it a visual representation.

There's superfluous capitalization here ("Site Icon" and "Favicon"). I would not say that it is "like an avatar", as avatar outside of the WP context can mean a lot of things, not just a square image. I would specifically say that it's a square image and perhaps a hint about it being used small so that users can choose and/or prepare an image that has a better chance of a good result. Possibly something like:

The site icon is a square image that is used in browsers and on devices to identify your site. It can be displayed in various sizes, including very small, so choose accordingly.

I think "choose accordingly" sounds a little ominous, so let's riff on this further.

[obenland]

[33329] removed the Stetings version of Site Icon. Thanks for bringing it up rabmalin!