code example is wrong...

### Type of issue

Code doesn't work

### Description

[Enter feedback here]
the code example creates the semaphore with inital count of 0
```
semaphore = new SemaphoreSlim(0, 3);
```

this actually means that the semaphore cannot be waited on....

instead it should be create with initial count of 3 (which means it can be waited on 3 times)
```
semaphore = new SemaphoreSlim(3, 3);
```

please fix this

### Page URL

https://learn.microsoft.com/en-us/dotnet/api/system.threading.semaphoreslim?view=net-8.0

### Content source URL

https://github.com/dotnet/dotnet-api-docs/blob/main/xml/System.Threading/SemaphoreSlim.xml

### Document Version Independent Id

92f24f67-5b11-f1d1-a8cc-b8bf8fbe7ddc

### Article author

@dotnet-bot