Update README.md

Author: josemoracard

exercises/05.1-second-styles/README.md

@@ -6,11 +6,11 @@ tutorial: "https://www.youtube.com/watch?v=Vr5Kh47NSuM"
 
 ## 📝 Instructions:
 
-1. Now, lets change Badge component styles to make it look like this:
+1. Now, let's change the Badge component styles to make it look like this:
 
 ![Alert in bootstrap](../../.learn/assets/05.1-1.png?raw=true)
 
-## 💡 Hint:
+## 💡 Hints:
 
 + You should only style the background colors, text colors, and borders.
-+ The badge has a `border-radius` of `50%`
++ The badge has a `border-radius` of `50%`