add evaluation section to readme

```

    python ./measurement_pipeline/run_csst_msc_instrument.py /path/to/config_detrending.yaml

```

### Run Source Injection

* Inject souces onto the L1 (detrended)

* modify the corresponding ```config_injection.yaml``` file to configure all running options

```

    python ./injection_pipeline/injection_pipeline.py /path/to/config_injection.yaml

```

### Run L1 Detection & Photometry pipeline

* Re-detect and redo the photometry measurements on the injected images

* modify the corresponding ```config_photometry.yaml``` file to configure all running options

```

    python ./measurement_pipeline/run_csst_msc_mbi_photometry.py /path/to/config_photometry.yaml

```

### Evaluation

* ```evaluation```package provided tools and example notebooks for evaluating:

    * Injected objects

    * Detection completeness

    * Photometric accuracy

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