fix: indentation

content/A-buffered-channel.md

@@ -20,29 +20,29 @@ Berikut adalah contoh penerapan buffered channel. Program di bawah ini merupakan
 package main
 
 import (
-	"fmt"
-	"runtime"
-	"time"
+    "fmt"
+    "runtime"
+    "time"
 )
 
 func main() {
-	runtime.GOMAXPROCS(2)
+    runtime.GOMAXPROCS(2)
 
-	messages := make(chan int, 2)
+    messages := make(chan int, 2)
 
-	go func() {
-		for {
-			i := <-messages
-			fmt.Println("receive data", i)
-		}
-	}()
+    go func() {
+        for {
+            i := <-messages
+            fmt.Println("receive data", i)
+        }
+    }()
 
-	for i := 0; i < 5; i++ {
-		fmt.Println("send data", i)
-		messages <- i
-	}
+    for i := 0; i < 5; i++ {
+        fmt.Println("send data", i)
+        messages <- i
+    }
 
-	time.Sleep(1 * time.Second)
+    time.Sleep(1 * time.Second)
 }
 
 ```