One more minor python markdown cell change

README.md

@@ -35,7 +35,7 @@ on a [~15K record instruction corpus](https://github.com/databrickslabs/dolly/tr
 To use the model with the `transformers` library on a machine with GPUs, first make sure you have the `transformers` and `accelerate` libraries installed.
 In a Databricks notebook you could run:
 
-```
+```python
 %pip install accelerate>=0.12.0 transformers[torch]==4.25.1
 ```