[Consistency Models] correct checkpoint url in the doc (huggingface#3962)

correct checkpoint url.

Author: sayakpaul

docs/source/en/api/pipelines/consistency_models.mdx

@@ -12,7 +12,7 @@ Resources:
 * [Original Code](https://github.com/openai/consistency_models)
 
 Available Checkpoints are:
-- *cd_imagenet64_l2 (64x64 resolution)* [openai/consistency-model-pipelines](https://huggingface.co/openai/consistency-model-pipelines)
+- *cd_imagenet64_l2 (64x64 resolution)* [openai/consistency-model-pipelines](https://huggingface.co/openai/diffusers-cd_imagenet64_l2)
 - *cd_imagenet64_lpips (64x64 resolution)* [openai/diffusers-cd_imagenet64_lpips](https://huggingface.co/openai/diffusers-cd_imagenet64_lpips)
 - *ct_imagenet64 (64x64 resolution)* [openai/diffusers-ct_imagenet64](https://huggingface.co/openai/diffusers-ct_imagenet64)
 - *cd_bedroom256_l2 (256x256 resolution)* [openai/diffusers-cd_bedroom256_l2](https://huggingface.co/openai/diffusers-cd_bedroom256_l2)