Directive enhance
## Information
Directive is a very powerful tool only offered by the Angular framework. You can apply the DRY principal by having shared logic inside a directive and applying it to any component you want.
But the real power is that you can enhance an already existing directive which moreover doesn't **belong** to you.
## Statement
In this exercice, we have a want to display a list of persons. If the list is empty, you must display _" the list is empty !! "_.
Currently we have :
```typescript
{{ person.name }}
The list is empty !!
```
We want to get rid of the ng-container by writing :
```typescript
{{ person.name }}
The list is empty !!
```
The goal is to **improve the ngFor directive**
## Submitting your work
1. Fork the project
2. clone it
3. npm install
4. **nx serve ng-for-enhance**
5. _...work On it_
6. Commit your work
7. Submit a PR with a title beginning with **Answer:3** that I will review and other dev can review.
_You can ask any question on_ 