Fix copy-pasted text

There are a couple of subtitles that seem to have just been copy-pasted and ignored. This PR is just to update them.

README.md

@@ -72,7 +72,7 @@ print(processor.decode(predictions[0], skip_special_tokens=True))
 
 ### In full precision, on GPU:
 
-You can run the model in full precision on CPU:
+You can run the model in full precision on GPU:
 ```python
 import requests
 from PIL import Image
@@ -95,7 +95,7 @@ print(processor.decode(predictions[0], skip_special_tokens=True))
 
 ### In half precision, on GPU:
 
-You can run the model in full precision on CPU:
+You can run the model in half precision on GPU:
 ```python
 import requests
 from PIL import Image