Document scope forking in migration guide

[szokeasaurusrex]

Core or SDK?

Platform/SDK

Which part? Which one?

Python

Description

Our migration guide is missing instructions for how to migrate code like the following to our new scope API:

import sentry_sdk

cloned_hub = sentry_sdk.Hub(my_hub)

Suggested Solution

The code should be changed like so:

import sentry_sdk

forked_isolation_scope = my_isolation_scope.fork()