Show appropriate terraform logo for light and dark themes in README

[thekbb]

The README looks janky on GitHub when using the dark theme.

This will swap out svg's linked from Hashicorp's terraform brand page based on the users GitHub theme
default light (for monsters that use this):

default dark:

The <picture> element is well understood, GitHub's docs indicate this is the preferred way to get this done.

[virgofx]

@thekbb Would it be possible to include the assets locally in this repo instead of a random 3rd party? Then reference them similarly to the old asset.

[thekbb]

@thekbb Would it be possible to include the assets locally in this repo instead of a random 3rd party? Then reference them similarly to the old asset.

jinx. I was thinking a similar thing in https://github.com/okta/terraform-provider-okta/pull/1574/files#r1207362748

I'll go with your plan, which is better.

[virgofx]

Ah, didn't know these were from Terraform's brand page. I guess it would be okay to leave. My first thought when I saw the domain was like -- what is that? what happens if that 3rd party hosting goes away kind of thing.

[thekbb]

Ah, didn't know these were from Terraform's brand page. I guess it would be okay to leave. My first thought when I saw the domain was like -- what is that? what happens if that 3rd party hosting goes away kind of thing.

It's still probable that someone at Hashicorp reorganizes their stuff, they'd never imagine people would link to that.

I added it to the repo, and think it's much better. Thank you for the suggestion, @virgofx.

[monde]

Awesome effort @thekbb , thank you so much!