Update README.md to reflect requirements in install_chime8

Signed-off-by: Samuele Cornell <cornellsamuele@gmail.com>

scripts/chime7/README.md

@@ -56,6 +56,7 @@ pip install optuna-fast-fanova gunicorn
 pip install optuna-dashboard
 pip install lhotse==1.14.0
 pip install --upgrade jiwer
+pip install cmake>=3.18
 ./run_install_lm.sh "/your/path/to/NeMo"
 ```
 
@@ -186,4 +187,4 @@ asr_model_path=${ASR_MODEL_PATH} \
 lm_model_path=${LM_MODEL_PATH} \
 diarizer.vad.model_path=${VAD_MODEL_PATH} \
 diarizer.msdd_model.model_path=${MSDD_MODEL_PATH} \
-```
+```