Add banner to README

Author: ishubhamsingh

README.MD

@@ -1,9 +1,17 @@
+<p align="center">
+<img src="/assets/splashy_banner.png" > 
+</p>
+
+<hr>
+
+<img src="/assets/icon.png" width="120" height="120"> 
+
 # Splashy
 
+An Unsplash based wallpaper app built with Compose Multiplatform and KMP for Android and iOS.
+
 [![Check](https://github.com/ishubhamsingh/Splashy/actions/workflows/Check.yaml/badge.svg?branch=main)](https://github.com/ishubhamsingh/Splashy/actions/workflows/Check.yaml)
 
-## :scroll: Description
-An Unsplash based wallpaper app built with Compose Multiplatform and KMP for Android and iOS.
 
 ## :hammer_and_wrench: Tech Stack
 
@@ -57,4 +65,4 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-```
+```