doc: Update README with responsive design screenshots

Author: AncientNimbus

README.md

@@ -1,6 +1,20 @@
 # Homepage Demo
 
-<!-- I made this Homepage demo to practice responsive web design.
-This webpage supports desktop, tablet & mobile devices. -->
+I made this Homepage demo to practice responsive web design.
+This webpage supports desktop, tablet & mobile devices.
 
-Project Status: WIP
+## Screenshots
+<details>
+  <summary><b>Desktop</b></summary>
+<img src="https://github.com/user-attachments/assets/d6553847-0348-4c65-9756-c6b810b25cdb" />
+</details>
+
+<details>
+  <summary><b>Tablet</b></summary>
+<img src="https://github.com/user-attachments/assets/32a40152-2f9a-4fc3-b265-5cd7a7b9925a" />
+</details>
+
+<details>
+  <summary><b>Mobile</b></summary>
+<img src="https://github.com/user-attachments/assets/fd51294d-402f-4cd7-b3b5-3101df4a4035" />
+</details>