Update README.md

added CoreMLTools installation link

README.md

@@ -49,6 +49,10 @@ find . -type f -name "*.zip" -exec unzip {} \;
 pip install coremltools transformers
 ```
 
+**Coremltools :**
+
+See coremltools intallation https://coremltools.readme.io/v4.0/docs/installation 
+
 **How to RUN:**
 
 python chat.py