Integration with Existing Apps: Podfile example does not use `use_react_native!`, is incomplete

[mhjacobson]

Description

React Native 0.60 added the Podfile macro use_react_native!. In 0.63, the macro was added to the template project Podfile, replacing tens of pod lines in the Podfile of a React Native iOS app. (See the change in upgrade-helper.)

However, the Integration with Existing Apps docs page still suggests adding all the pod lines manually. (Worse, it is out of date, missing some pods that the reader basically just has to figure out through trial and error.)

The documentation should just suggest using use_react_native!, like the template project does.

Documentation version

next, 0.67

[cortinico]

Yup you're right. That needs to be update.
That's up for grab if someone wants to contribute 👍