Update README

Author: akiradeveloper

README.md

@@ -21,30 +21,30 @@ flowchart LR
 is equivalent to
 
 ```rust
-        let (ch1, w1) = channel();
-        let (ch2, w2) = channel();
-        tokio::spawn({
-            let r1 = ch1.reader();
-            async move {
-                let x = r1.get().await.unwrap();
-                tokio::task::yield_now().await;
-                let s = format!("{}pong", x);
-                w2.put(s).unwrap();
-            }
-        });
-        let y = tokio::spawn({
-            let r2 = ch2.reader();
-            async move {
-                let x = "ping".to_owned();
-                w1.put(x).unwrap();
-                tokio::task::yield_now().await;
-                let y = r2.get().await.unwrap();
-                y
-            }
-        })
-        .await
-        .unwrap();
-        assert_eq!(y, "pingpong")
+let (ch1, w1) = channel();
+let (ch2, w2) = channel();
+tokio::spawn({
+    let r1 = ch1.reader();
+    async move {
+        let x = r1.get().await.unwrap();
+        tokio::task::yield_now().await;
+        let s = format!("{}pong", x);
+        w2.put(s).unwrap();
+    }
+});
+let y = tokio::spawn({
+    let r2 = ch2.reader();
+    async move {
+        let x = "ping".to_owned();
+        w1.put(x).unwrap();
+        tokio::task::yield_now().await;
+        let y = r2.get().await.unwrap();
+        y
+    }
+})
+.await
+.unwrap();
+assert_eq!(y, "pingpong")
 ```
 
 ----
@@ -67,39 +67,39 @@ flowchart LR
 is equivalent to
 
 ```rust
-        let (ch1, w1) = channel();
-        let (ch2, w2) = channel();
-        let (ch3, w3) = channel();
-        let (ch4, w4) = channel();
-        // λx. x+2
-        tokio::spawn({
-            let r1 = ch1.reader();
-            async move {
-                let x = r1.get().await.unwrap();
-                w2.put(x + 2).unwrap();
-            }
-        });
-        // λx. x*2
-        tokio::spawn({
-            let r1 = ch1.reader();
-            async move {
-                // Emulating expensive I/O
-                tokio::time::sleep(std::time::Duration::from_secs(5)).await;
-                let x = r1.get().await.unwrap();
-                w3.put(x * 2).unwrap();
-            }
-        });
-        // λxy. x*y
-        tokio::spawn({
-            let r2 = ch2.reader();
-            let r3 = ch3.reader();
-            async move {
-                let (x, y) = tokio::try_join!(r2.get(), r3.get()).unwrap();
-                w4.put(x * y).unwrap();
-            }
-        });
-        w1.put(1).unwrap();
-        let r4 = ch4.reader();
-        let ans = r4.get().await.unwrap();
-        assert_eq!(ans, 6);
+let (ch1, w1) = channel();
+let (ch2, w2) = channel();
+let (ch3, w3) = channel();
+let (ch4, w4) = channel();
+// λx. x+2
+tokio::spawn({
+    let r1 = ch1.reader();
+    async move {
+        let x = r1.get().await.unwrap();
+        w2.put(x + 2).unwrap();
+    }
+});
+// λx. x*2
+tokio::spawn({
+    let r1 = ch1.reader();
+    async move {
+        // Emulating expensive I/O
+        tokio::time::sleep(std::time::Duration::from_secs(5)).await;
+        let x = r1.get().await.unwrap();
+        w3.put(x * 2).unwrap();
+    }
+});
+// λxy. x*y
+tokio::spawn({
+    let r2 = ch2.reader();
+    let r3 = ch3.reader();
+    async move {
+        let (x, y) = tokio::try_join!(r2.get(), r3.get()).unwrap();
+        w4.put(x * y).unwrap();
+    }
+});
+w1.put(1).unwrap();
+let r4 = ch4.reader();
+let ans = r4.get().await.unwrap();
+assert_eq!(ans, 6);
 ```