Fix checkpoint in CogView3PlusPipeline example (#10211)

Author: hlky

src/diffusers/pipelines/cogview3/pipeline_cogview3plus.py

@@ -38,7 +38,7 @@
         >>> import torch
         >>> from diffusers import CogView3PlusPipeline
 
-        >>> pipe = CogView3PlusPipeline.from_pretrained("THUDM/CogView3Plus-3B", torch_dtype=torch.bfloat16)
+        >>> pipe = CogView3PlusPipeline.from_pretrained("THUDM/CogView3-Plus-3B", torch_dtype=torch.bfloat16)
         >>> pipe.to("cuda")
 
         >>> prompt = "A photo of an astronaut riding a horse on mars"