docs: fix mistakenly wording in useContext reference

Signed-off-by: Codex <codex@openai.com>

Author: codex

src/content/reference/react/useContext.md

@@ -1366,7 +1366,7 @@ You might have a provider without a `value` in the tree:
 
 If you forget to specify `value`, it's like passing `value={undefined}`.
 
-You may have also mistakingly used a different prop name by mistake:
+You may have also mistakenly used a different prop name by mistake:
 
 ```js {1,2}
 // 🚩 Doesn't work: prop should be called "value"