Fix two incorrect make targets in the readme.
Signed-off-by: Jie Fu <redacted>
### Inspecting the converted model
The converted model can be inspected using the following command:
```console
-(venv) $ make inspect-converted-model
+(venv) $ make causal-inspect-converted-model
```
### Running the converted model
```console
-(venv) $ make run-converted-model
+(venv) $ make causal-run-converted-model
```
### Model logits verfication