content: Add example about wrapping label in ion-radio for ionic v7

[ymaheshwari1]

URL

https://ionicframework.com/docs/api/radio#label-placement

Issue Description

Currently, there is example of using label inside ion-radio, but the documentation does not clearly describe how to wrap the label when used with ion-radio.

[ymaheshwari1]

I'm interested in contributing

[AldoMartinez]

I had the same issue, I needed to use the legacy syntax to wrap my labels. They need to expose some kind of property to handle text wrap in the new syntax of ion-radio.