fix md error cause the last section hidden

Author: dinhtungdu

docs/internal-developers/testing/releases/970.md

@@ -643,7 +643,7 @@ Make sure Product Catalog template is cleared out to the default state. To achie
 
 Video presents the replacement of a Classic Template on two templates: Product Catalog and Products by Category
 
-<video src="https://user-images.githubusercontent.com/20098064/214537418-51c74d39-7e00-4e26-9c2c-fe2e0f245390.mov" />
+<video src="https://user-images.githubusercontent.com/20098064/214537418-51c74d39-7e00-4e26-9c2c-fe2e0f245390.mov"></video>
 
 ### Simplify unused Add to Cart button form placeholder for grouped product ([8438](https://github.com/woocommerce/woocommerce-blocks/pull/8438))