fix

Author: hengtaoguo

docs/install_maxtext.md

@@ -157,7 +157,7 @@ install_maxtext_github_deps
 
 3.  **Run tests:** Run MaxText tests to ensure there are no regressions.
 
-## Appendix: Install XPK for Multi-host Workloads
+## Appendix: Install XPK for MaxText Multi-host Workloads
 
 > **_NOTE:_** XPK is only required for multi-host TPU configurations (e.g., v5p-128, v6e-256). For single-host training, XPK is not needed and you can run MaxText directly on your TPU VM.