Fix : .pdf path

src/documentation/basics/welcome.ts

@@ -72,7 +72,7 @@ Reloading the application will get you one random song example to study every ti
 
 ## Alternative documentation source (.pdf)
 
-You can also find a .pdf version listing the principal commands and functions [here](${pdf}). This document has been generated by Chris Collis. It recaps the main sections of this documentation and can be a good companion while learning Topos.
+You can also find a .pdf version listing the principal commands and functions [here](https://github.com/Bubobubobubobubo/topos/blob/main/src/documentation/basics/TOPOS_COMMANDS.pdf). This document has been generated by Chris Collis. It recaps the main sections of this documentation and can be a good companion while learning Topos.
 
 ## Support