rxjs-dev docs shareReplay example variable 'subscription' might better be called 'observable'

[egretsRegrets]

Documentation Related To Component:

shareReplay

Please check those that apply

• documentation needs clarification

Description Of The Issue

I could be wrong, but in the brief example I think the variable called 'subscription' would actually be of the type 'Observable' and should probably be called 'observable' to prevent confusion. Here's the example as it exists today:

const subscription = obs$.pipe(
  take(4),
  shareReplay(3)
);
subscription.subscribe(x => console.log('source A: ', x));
subscription.subscribe(y => console.log('source B: ', y));```