applied correct tut settings

docs/src/main/tut/semigroup.md

@@ -89,32 +89,24 @@ instance defined for `None` or `Some`--you will get errors if you attempt to com
 `Some` or `None` instance:
 
 ```tut:book
+import cats.implicits._
 
-> import cats.implicits._
-
-> val someInstance = Some(1)
-> val noneInstance = None
-
-> val result = someInstance |+| noneInstance
-
-error: value |+| is not a member of Some[Int]
-       someInstance(1) |+| noneInstance
-                       ^
+val someInstance = Some(1)
+val noneInstance = None
+```
+```tut:fail
+val result = someInstance |+| noneInstance
 ```
 
 whereby telling the compiler your vals are `Option` instances succeeds:
 
 
 ```tut:book
+import cats.implicits._
 
-> import cats.implicits._
-
-> val optionInstanceSome : Option[Int] = Some(1)
-> val optionInstanceNone : Option[Int] = None
-> val result = optionInstanceSome |+| optionInstanceNone
-
-result: Option[Int] = Some(1)
-
+val optionInstanceSome : Option[Int] = Some(1)
+val optionInstanceNone : Option[Int] = None
+val result = optionInstanceSome |+| optionInstanceNone
 ```
 
 N.B.