Enable 3rd party images

[svrnm]

For #5462 we want to use a 3rd party image. This image has a MIT license, so it is compatible with our project. We need to make sure that it is attributed correctly.

The CNCF provides these recommendations for attribution notices. I would argue that an image is a "vendored component", since we want to incorporate it unmodified.

So, based on that, I suggest we do the following:

• We create a folder for 3rd party images (or assets), e.g. under assets/third_party
• We add a README.md to that folder calling out it's purpose
• We create a folder for each 3rd party asset (here something like iconduck-image-not-found)
• We put the file + the license into the folder
• We can use it.
• We update our top level README.md Licenses section to call this out

I understand that this sounds like a lot of effort for adding a single image, but I argue that this is going to be helpful in the future as well, since

1. it enables us to use other images following this pattern as well
2. we might need this if we want to add company logos to ecosystem pages like vendors, adopters, etc.

[tiffany76]

This proposal makes sense to me. I say we go ahead.

[theletterf]

Agree with the proposal!

[chalin]

Thanks for looking into this and your proposal. First thought: yes, it sounds like a lot of work, and I'd push back on it for as long as we can reasonably avoid it.

Stepping back a bit regarding the original PR: have we considered using just a Font Awesome icon instead, or a completely-free-and-no-license-hassle stock image source?

[svrnm]

Thanks for looking into this and your proposal. First thought: yes, it sounds like a lot of work, and I'd push back on it for as long as we can reasonably avoid it.

Stepping back a bit regarding the original PR: have we considered using just a Font Awesome icon instead, or a completely-free-and-no-license-hassle stock image source?

the font awesome icons might be too small/minimalistic, I like the idea of the image, of course someone with a telescope not finding what they are looking for would be my preferred image. We could also use a variant of

https://opentelemetry.io/homepage-hero-as-background_hu13043826424429285166.jpg

but let me move that over into the original PR