Please update the Documents ASAP , I'm not able to understand the new way properly

### Version info

**Angular:**
13.00

**Firebase:**
"firebase": "^9.6.1",
**AngularFire:**
"@angular/fire": "^7.2.0",
**Other (e.g. Ionic/Cordova, Node, browser, operating system):**

### How to reproduce these conditions

**Failing test unit, Stackblitz demonstrating the problem**

**Steps to set up and reproduce**

**Sample data and security rules**

### Debug output

** Errors in the JavaScript console **

** Output from `firebase.database().enableLogging(true);` **

** Screenshots **

### Expected behavior

### Actual behavior

Start with the AngularFire README's Developer's Guide and compare its instructions with the stated Angular 13, Firebase 9.6.1, and AngularFire 7.2.0 versions. The issue does not identify a specific document, section, or confusing step, so first gather concrete examples of the unclear workflow. Done would require an agreed documentation scope and updated guidance that addresses those examples.

Written by the indexing model from the issue text.