being explicit with transformers version

README.md

@@ -38,8 +38,9 @@ Idefics2 is an open multimodal model that accepts arbitrary sequences of image a
 We release under the Apache 2.0 license 2 checkpoints:
 - [idefics2-8b-base](https://huggingface.co/HuggingFaceM4/idefics2-8b-base): the base model
 - [idefics2-8b](https://huggingface.co/HuggingFaceM4/idefics2-8b): the base model fine-tuned on a mixture of supervised and instruction datasets (text-only and multimodal datasets)
-- idefics2-8b-chatty (coming soon): `idefics2-8b` further fine-tuned on long conservations
+- idefics2-8b-chatty (coming soon): `idefics2-8b` further fine-tuned on long conservation
 
+**As of April 15th, 2024**, Idefics2 is not part of a Transformers pypi release. Please install Transformers from `main` (for instance with `pip install -q git+https://github.com/huggingface/transformers`).
 
 # Model Summary