Add experimental flag

[alexBinns]

This PR adds a badge astro component.

[MeganSteenkamp]

@alexBinns we should get a design review on this 🙌
How does it look when it's on an endpoint title?

[alexBinns]

@alexBinns we should get a design review on this 🙌 How does it look when it's on an endpoint title?

Yea I have posted in design-crit for jesters review

[alexBinns]

@alexBinns we should get a design review on this 🙌 How does it look when it's on an endpoint title?

It looks the same pretty much. I can rebase off Andy's PR and add in there?

[AndyClifford]

Looks great 🚀

• How do we plan on using this in combination with a native markdown h2 i.e. ## Endpoint Title ...
• Do you think it makes more sense to use a component which encapsulates the h2 (and experimental flag) using html? If so how will our site nav and/or TOC handle these?

[alexBinns]

@alexBinns we should get a design review on this 🙌 How does it look when it's on an endpoint title?

[alexBinns]

I have updated it to a flex that will drop down to a new line instead of hover at the right side screenshots below. I spoke to Junjie. He said it is preferable to having it hover on the right side.