fix: correct syntax for time.Sleep function

Signed-off-by: Rishav Mehra <rishavmehra61@gmail.com>

http-pokeapi/main.go

@@ -14,7 +14,7 @@ type apiconfig struct {
 }
 
 func main() {
-	time.Sleep[2*time.Second]
+	time.Sleep(2 * time.Second)
 	cfg := &apiconfig{
 		client: pokeapi.Client{},
 	}