Add f32 and f64 examples warning

[GuillaumeGomez]

r? @steveklabnik

Fixes#29334

[steveklabnik]

So, you put it this way because the examples are kinda random, right? Would it be better to pick one, and make all examples use it, and then only need the disclaimer for one of them? I'm not sure.

[GuillaumeGomez]

I found it better this way because as long as examples are common for f32 and f64, people should be aware that it's the same. However, if you have a better idea, just let me know.

[steveklabnik]

Right, but right now, in f32 it says "the examples are f64" and in f64 it says "the examples are f32". If they're common they should be just one type, no? Or maybe we're just agreeing and slightly misunderstanding each other :)

[GuillaumeGomez]

Haha, I see your point. I rewrite it. :)

[steveklabnik]

How about "please note that examples are shared between the f64"...

[steveklabnik]

One tiny wording tweak (for both, though I just left the comment on one) and then let's

[steveklabnik]

@bors: r+ rollup

🎊 ❤️

[bors]

📌 Commit 25c62eb has been approved by steveklabnik