diff --git a/README.md b/README.md
index 5633a93..5fb716f 100644
--- a/README.md
+++ b/README.md
@@ -20,12 +20,12 @@ Output:
 Formated date: 2020-05-30 13:32:04 +08:00
 ```
 
-| Format                | Date                                    |
-|-----------------------|-----------------------------------------|
-| yy-M-d'T'H:m:s a z | 25-1-11T11:46:19 AM +08:00              |
-| yyyy-MM-dd'T'HH:mm:ss z | 2025-01-11T11:43:41 +08:00              |
-| EEE MMM dd yyyy HH:mm:ss z | Sat Jan 11 2025 11:44:34 +08:00         |
-| EEEE MMMM dd yyyy HH:mm:ss z | Saturday January 11 2025 11:44:57 +08:00 |
+| Format                      | Date                                       |
+|-----------------------------|--------------------------------------------|
+| `yy-M-d'T'H:m:s a z`          | `25-1-11T11:46:19 AM +08:00`               |
+| `yyyy-MM-dd'T'HH:mm:ss z`     | `2025-01-11T11:43:41 +08:00`               |
+| `EEE MMM dd yyyy HH:mm:ss z`  | `Sat Jan 11 2025 11:44:34 +08:00`          |
+| `EEEE MMMM dd yyyy HH:mm:ss z` | `Saturday January 11 2025 11:44:57 +08:00` |
 
 ```rust
 format_human(Duration::from_secs(2 * 24 * 60 * 60 + 1));