Update README.md

Author: RyanHecht

README.md

@@ -25,7 +25,7 @@ Join the ShowScript Discord server for help & support: https://discord.gg/yNX8Qd
 ## Example
 
 A file that defines a series of timecodes and actions is called a "Show." Your shows live in `plugins/ShowScript/Shows`. You may nest your shows in directories; it's considered good practice to do this to organize different projects.
-You can write your shows in Groovy (ShowScript 3), or YAML (ShowScript 2). The YAML syntax of ShowScript 2 might be easier for those unfamiliar with programming to understand, but ShowScript 3 unlocks more capabilities and advanced usage.
+You can write your shows in Groovy (ShowScript 3), or YAML (ShowScript 2). The YAML syntax of ShowScript 2 might be easier for those unfamiliar with programming to understand, but ShowScript 3 unlocks more capabilities and [advanced usage](https://github.com/MCParks/ShowScript/blob/main/docs/showscript3.md#advanced-concepts).
 
 ### ShowScript 3 (file ending in `.groovy`)