Update tutorials/gm-world.md

Co-authored-by: joshcs.eth <46639943+jcstein@users.noreply.github.com>

Author: yarikbratashchuk

tutorials/gm-world.md

@@ -69,7 +69,7 @@ If you get errors of `gmd` not found, you may need to add the `go/bin` directory
 
 ```bash
 cd $HOME
-bash -c "$(curl -sSL https://rollkit.dev/install-gm-rollup.sh)"
+sudo bash -c "$(curl -sSL https://rollkit.dev/install-gm-rollup.sh)"
 ```
 
 ## 🚀 Starting your rollup {#start-your-rollup}