Update checkpoint_engine/ps.py

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Anjie Hou <149605198+specture724@users.noreply.github.com>

Author: specture724

checkpoint_engine/ps.py

@@ -982,7 +982,7 @@ def register_checkpoint(
                 To free the actual memory of the shared pool or to modify its shape,
                 please unregister the current user of the shared memory pool using `unregister_checkpoint` with `force=True`.
             use_inplace_pin_memory: If True, allows inplace pin memory for /dev/shm/ safetensors files.
-                Currently, this feature is experimental and may crush.
+                Currently, this feature is experimental and may crash.
         """
         try:
             if use_shared_memory_pool: