fix: license mistake

README.MD

@@ -70,6 +70,6 @@ There is also plan to support other mod centered on Create and ComputerCraft, su
 
 ## Reuse this resourcepack
 
-As the license says, you can freely reuse the pack and modify it, but a mention to the original work would be appreciated ;)
+As the license says, you can freely reuse the pack and modify it, but a mention to the original work is needed.
 
 <br> <a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a><br />This work is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.