content: simplify introduction of basic types

The use of the constant format string is confusing here.

Fixes golang/tour#38

Change-Id: I6ebac4effbb1c8ac50805bc7e24f691bb0c233b9
Reviewed-on: https://go-review.googlesource.com/24290
Reviewed-by: Francesc Campoy Flores <campoy@golang.org>
diff --git a/content/basics/basic-types.go b/content/basics/basic-types.go
index 25fd48e..99becee 100644
--- a/content/basics/basic-types.go
+++ b/content/basics/basic-types.go
@@ -14,8 +14,7 @@
 )
 
 func main() {
-	const f = "%T(%v)\n"
-	fmt.Printf(f, ToBe, ToBe)
-	fmt.Printf(f, MaxInt, MaxInt)
-	fmt.Printf(f, z, z)
+	fmt.Printf("Type: %T Value: %v\n", ToBe, ToBe)
+	fmt.Printf("Type: %T Value: %v\n", MaxInt, MaxInt)
+	fmt.Printf("Type: %T Value: %v\n", z, z)
 }