Update README.md

README.md

@@ -87,11 +87,11 @@ An example from custom category looks as follows:
 - `category (str)`: The category of the question.
   - Culture, customs, geography, history, government, law, healthcare, and environmental aspects.
 - `question (str)`: The question text.
-  - Converted from full-width to half-width characters except for half-width katakana.
+  - Converted from full-width to half-width characters except for katakana characters.
   - Does not contain line breaks (`\n`).
   - Whitespace at the beginning/end has been removed.
 - `choice{0..3} (str)`: Four answer options (choice0 to choice3).
-  - Converted from full-width to half-width characters except for half-width katakana.
+  - Converted from full-width to half-width characters except for katakana characters.
   - Does not contain line breaks (`\n`).
   - Whitespace at the beginning/end has been removed.
 - `answer_index (int)`: The index of the correct answer among choice{0..3} (0–3).