Update README.md

README.md

@@ -23,4 +23,6 @@ Output derivations are equations separated by "and".
 1. Download  ```MathT5.py```  to your working directory.
 2. ```from MathT5 import load_model, inference```
 3. ```tokenizer, model = load_model("jmeadows17/MathT5-large")```
-4. ```inference(prompt, tokenizer, model)```
+4. ```inference(prompt, tokenizer, model)```
+
+```MathT5.pretty_print(text, prompt=True)``` makes prompts and outputs (```prompt=False```) easier to read.