Update README.md

README.md

@@ -34,7 +34,7 @@ while True:
     print(f"Bot: {response}")
 ```
 ## todset.py
-This file converts a file into a dataset used by `train.py`. The file has lines, each of them has two parts, before "→" is the input and after is the output. Here's an example: 
+This file converts a file (usually `dataset.txt`) into a dataset used by `train.py`. The file has lines, each of them has two parts, before "→" is the input and after is the output. Here's an example: 
 ```txt
 Hey→Hello.
 Hi.→Hello.