Merge pull request TheOdinProject#481 from khhuang7/flex_emoji_disclaimer

07-flex-layout-2: Add disclaimer to Desired Outcome

Author: thatblindgeye

flex/07-flex-layout-2/README.md

@@ -20,6 +20,8 @@ On a smaller screen it will look like this:
 
 ![smaller](./desired-outcome-smaller.png)
 
+Note: The emojis may instead show up as one or several text symbols (e.g. ☆♂) if you don't have an emoji-based font family installed on your operating system. This does not affect the exercise and can be ignored.
+
 ### Self Check
 - The header text is size 32px and weight 900.
 - The header text is vertically centered and 16px from the edge of the screen.