fix(curriculum): remove extra spaces lab-game-character-stats (freeCodeCamp#64329)

Author: pdtrang

curriculum/challenges/english/blocks/lab-game-character-stats/68cabc534d2e741f33a3fe1d.md

@@ -39,10 +39,10 @@ In this lab, you'll build a game character stats tracker. The program will allow
    For example, a character named `Kratos`, right after the instantiation, should be represented as the following:
 
    ```md
-    Name: Kratos
-    Level: 1
-    Health: 100
-    Mana: 50
+   Name: Kratos
+   Level: 1
+   Health: 100
+   Mana: 50
    ```
 
 ## Usage example