Update README.md

Add Page 404 Floating Cloud

Author: MjavadH

README.md

@@ -151,6 +151,11 @@ Simple 404 collection for use in personal and commercial projects
       <summary>image</summary>
       <img src="https://github.com/MjavadH/4X4-Collection/blob/master/Fantasy/Simple_Two_Column/Image.png">
       </details>
+- Floating Cloud [preview](https://mjavadh.github.io/4X4-Collection/Fantasy/Floating%20Cloud/index.html)
+      <details>
+      <summary>image</summary>
+      <img src="https://github.com/MjavadH/4X4-Collection/blob/master/Fantasy/Floating%20Cloud/Image.png">
+      </details>
 
 ### Minimal
 - See [preview](https://mjavadh.github.io/4X4-Collection/Minimal/See/index.html)