Update dataset card

README.md

@@ -17,7 +17,7 @@ id2label = json.load(open(cached_download(hf_hub_url(REPO_ID, FILENAME)), "r"))
 id2label = {int(k):v for k,v in id2label.items()}
 ```
 
-To add an id2label mapping for a new dataset, simply define a Python dictionary, and then save that dictionary as a JSON file, like so:
+To add an `id2label` mapping for a new dataset, simply define a Python dictionary, and then save that dictionary as a JSON file, like so:
 ```
 import json
 
@@ -26,4 +26,5 @@ id2label = {0: 'cat', 1: 'dog'}
 
 with open('cats-and-dogs-id2label.json', 'w') as fp:
     json.dump(id2label, fp)
-```
+```
+You can then upload it to this repository (assuming you have right access).