Add an SOS warning shortcode and apply it to its intended pages.

content/posts/recipes/food/lemon-mousse.md

@@ -28,6 +28,8 @@ aliases:
   - /lemon-mousse
 ---
 
+{{% sos-warning %}}
+
 A simple snack that I make when waiting for a real meal to finish cooking, or just a treat I enjoy when wanting a reward for keeping up good habits. Keeping a half-dozen or more blocks of shelf-stable tofu around has become really handy!
 
 ## Ingredients