diff --git a/03_Day_Setting_Up/03_day_setting_up.md b/03_Day_Setting_Up/03_day_setting_up.md
index f0ed728..d65a0ac 100644
--- a/03_Day_Setting_Up/03_day_setting_up.md
+++ b/03_Day_Setting_Up/03_day_setting_up.md
@@ -15,7 +15,7 @@
 </div>
 </div>
 
-[<< Day 2](../02_Day_Introduction_to_React/02_introduction_to_react.md) | [Day 4 >>]()
+[<< Day 2](../02_Day_Introduction_to_React/02_introduction_to_react.md) | [Day 4 >>](./04_Day_Component/04_components.m)
 
 ![30 Days of React banner](../images/30_days_of_react_banner_day_3.jpg)
 
diff --git a/readMe.md b/readMe.md
index a07c798..c0df21a 100644
--- a/readMe.md
+++ b/readMe.md
@@ -26,6 +26,7 @@
 | 01    |                      [JavaScript Refresher](./01_Day_JavaScript_Refresher/01_javascript_refresher.md)                       |
 | 02    |                     [Getting Started React](./02_Day_Introduction_to_React/02_introduction_to_react.md)                     |
 | 03    |                                   [Setting Up](./03_Day_Setting_Up/03_day_setting_up.md)                                    |
+| 04    |                                      [Components](./04_Day_Component/04_components.md)                                      |
 
 🧡🧡🧡 HAPPY CODING 🧡🧡🧡<div>
 <small>Support [**Asabeneh**](https://www.patreon.com/asabeneh?fan_landing=true) to create more educational materials</small>