Update index.md

docs/envs/MaMuJoCo/index.md

@@ -46,13 +46,13 @@ MaMuJoCo also supports the [PettingZoo.AECAPI](https://pettingzoo.farama.org/api
 
 
 ## How to create new agent factorizations 
-### example 'Ant-v4', '8x1'
+### example 'Ant-v5', '8x1'
 In this example, we will create an agent factorization not present in Gymnasium-Robotics/MaMuJoCo the "Ant"/'8x1', where each agent controls a single joint/action (first implemented by [safe-MaMuJoCo](https://github.com/chauncygu/Safe-Multi-Agent-Mujoco)).
 
 first we will load the graph of MaMuJoCo:
 ```python
 >>> from gymnasium_robotics.mamujoco_v1 import get_parts_and_edges
->>> unpartioned_nodes, edges, global_nodes = get_parts_and_edges('Ant-v4', None)
+>>> unpartioned_nodes, edges, global_nodes = get_parts_and_edges('Ant-v5', None)
 ```
 The `unpartioned_nodes` contain the nodes of the MaMuJoCo graph.
 The `edges` well, contain the edges of the graph.