Update pages/video.py

pages/video.py

@@ -54,6 +54,7 @@ st.markdown("""
 - OpenCV allows color space changes with `cv2.cvtColor()`.
 - **Syntax**: `cv2.cvtColor(img, cv2.COLOR_<source>2<destination>)`
 - Example:
-  ```python
+  ```python```
   img = cv2.imread("path/to/image")
-  gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY)
+  gray_img = cv2.cvtColor(img, cv2.COLOR_BGR2GRAY
+  """,unsafe_allow_html=True)