Update 02.4.md

Author: nayzawoo

en/02.4.md

@@ -29,7 +29,7 @@ P.name = "Astaxie"  // assign "Astaxie" to the field 'name' of p
 P.age = 25  // assign 25 to field 'age' of p
 fmt.Printf("The person's name is %s\n", P.name)  // access field 'name' of p
 ```
-There are three more ways to define a struct.
+There are three more ways to initialize a struct.
 
 - Assign initial values by order
 ```Go