docs(contrib): clarify that we mean a path, not a link (latticexyz#2519)

Co-authored-by: alvarius <alvarius@lattice.xyz>

docs/pages/contribute.mdx

@@ -37,7 +37,7 @@ The following steps are only necessary if you want to contribute to MUD. To use
 To check the changes in an application, run these commands at the application's root.
 
 ```sh copy
-pnpm mud set-version --link <link to MUD repository>
+pnpm mud set-version --link /relative/path/to/local/mud
 pnpm install
 ```