Add badge to point to the documentation

Attempt to fix dependencies installation issues

PiperOrigin-RevId: 546244258

Author: Conchylicultor

README.md

@@ -1,7 +1,9 @@
 # Dataclass Array
 
-[![Unittests](https://github.com/google-research/dataclass_array/actions/workflows/pytest_and_autopublish.yml/badge.svg)](https://github.com/google-research/visu3d/actions/workflows/pytest_and_autopublish.yml)
+[![Unittests](https://github.com/google-research/dataclass_array/actions/workflows/pytest_and_autopublish.yml/badge.svg)](https://github.com/google-research/dataclass_array/actions/workflows/pytest_and_autopublish.yml)
 [![PyPI version](https://badge.fury.io/py/dataclass_array.svg)](https://badge.fury.io/py/dataclass_array)
+[![Documentation Status](https://readthedocs.org/projects/dataclass-array/badge/?version=latest)](https://dataclass-array.readthedocs.io/en/latest/?badge=latest)
+
 
 `DataclassArray` are dataclasses which behave like numpy-like arrays (can be
 batched, reshaped, sliced,...), compatible with Jax, TensorFlow, and numpy (with