Fixes open cabinet state machine run instructions in script (#600)

# Description

Fixes documentation instructions error for open cabinet state machine.

## Type of change

- Bug fix (non-breaking change which fixes an issue)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have run all the tests with `./isaaclab.sh --test` and they pass
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [x] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

CONTRIBUTORS.md

@@ -36,6 +36,7 @@ Guidelines for modifications:
 * Andrej Orsula
 * Antonio Serrano-Muñoz
 * Arjun Bhardwaj
+* Brayden Zhang
 * Calvin Yu
 * Chenyu Yang
 * Jia Lin Yuan

source/standalone/environments/state_machine/open_cabinet_sm.py

@@ -11,7 +11,7 @@ It uses the `warp` library to run the state machine in parallel on the GPU.
 
 .. code-block:: bash
 
-    ./isaaclab.sh -p source/standalone/environments/state_machine/lift_cube_sm.py --num_envs 32
+    ./isaaclab.sh -p source/standalone/environments/state_machine/open_cabinet_sm.py --num_envs 32
 
 """