Add download sample image feature

apps/home.py

@@ -53,13 +53,20 @@ def app():
         - **label of the box**, indicate the name of the object that the model detect;
         - **number beside the label**, indicate how much the confidence of the model detect the object;
 
-        ## Tutorial How to Use Ship Detection Model
+         ## Tutorial How to Use Ship Detection Model
         Here is the step by step how to use the model on this dashboard:
-        - first, **prepare the satellite imagery image** that you want to use;
+        - first, **prepare the satellite imagery image** that you want to use. If you don't have the image, you can use this sample image, by clicking the **"Download Image"** on the end of this dashboard usage explanation;
         - then, **choose the model** that you want to use **(on the side bar)**, **YOLOv5x6 Model** to use the YOLOv5x6 model or **Fine-Tuning Model** to use the fine-tuning model (study case: Tanjung Priok Port);
         - to upload your image, **click the "Browse File"** button, then upload your image;
         - after the image is uploaded, **right click the image** and then **copy the image address** by clicking **"Copy image address"** button;
         - then **paste the image address** on the box below the image;
         - finally, **click the "Predict"** button to start the detection of the object inside your image. Wait untill the result appear.
         """, unsafe_allow_html=True
-    )
+    )
+    with open("apps/image/sample.jpg", "rb") as file:
+        st.download_button(
+            label="Download Sample Image",
+            data=file,
+            file_name="sample.jpg",
+            mime="image/jpg"
+        )