Update README.md

josemoracard · web-flow · commit cbbbde428fcc · 2024-01-02T04:28:35.000+01:00
diff --git a/exercises/021-square_root/README.md b/exercises/021-square_root/README.md
@@ -18,7 +18,7 @@ square_root(50)
 7.07
 ```
 
-## 💡 Hint:
+## 💡 Hints:
 
 + Remember, the `math` module is a very useful tool.
 
