Update README.md

update readme.
alexpantyukhin · Sep 20, 2019 · f20aca7 · f20aca7
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diff --git a/README.md b/README.md
@@ -79,10 +79,12 @@ isMatched, mr := match.Match("gophergopher").
 
 ## Without result:
 ```go
+func main() {
 	Match(val).
 	When(42, func() { fmt.Println("You found the answer to life, universe and everything!") }).
 	When(ANY, func() { fmt.Println("No.. It's not an answer.") }).
 	Result()
+}
 ```
 
 # Installation