README.md: Remove one level of indentation and increase 'recommended' cleanupInterval

README.md

@@ -20,17 +20,16 @@ one) to recover from downtime quickly. (See the docs for `NewFrom()` for caveats
 ### Usage
 
 ```go
-	import (
+import (
 	"fmt"
 	"github.com/patrickmn/go-cache"
 	"time"
-	)
-
-	func main() {
+)
 
+func main() {
 	// Create a cache with a default expiration time of 5 minutes, and which
-		// purges expired items every 30 seconds
-		c := cache.New(5*time.Minute, 30*time.Second)
+	// purges expired items every 10 minutes
+	c := cache.New(5*time.Minute, 10*time.Minute)
 
 	// Set the value of the key "foo" to "bar", with the default expiration time
 	c.Set("foo", "bar", cache.DefaultExpiration)
@@ -99,7 +98,7 @@ one) to recover from downtime quickly. (See the docs for `NewFrom()` for caveats
 	// 1
 	// 2
 
-	}
+}
 ```
 
 ### Reference