Update 1 2 acknowledgement

1-2-acknowledgement.md

 Acknowledgement
 
-Testing <b>color</b> !#f03c15
+Testing <b>color</b> ![#f03c15]
 
 ![#f03c15](https://placehold.it/15/f03c15/000000?text=+) `#f03c15`
 ![#c5f015](https://placehold.it/15/c5f015/000000?text=+) `#c5f015`