Update cuCIM install instructions

README.md

@@ -49,23 +49,23 @@ cuCIM supports the following formats:
 
 #### [Conda (stable)](https://anaconda.org/rapidsai/cucim)
 
-> conda create -n cucim -c rapidsai -c conda-forge cucim cudatoolkit=`<CUDA version>`
+> conda create -n cucim -c rapidsai -c conda-forge cucim cuda-version=`<CUDA version>`
 
-`<CUDA version>` should be 11.0+ (e.g., `11.0`, `11.2`, etc.)
+`<CUDA version>` should be 11.2+ (e.g., `11.2`, `12.0`, etc.)
 
 #### [Conda (nightlies)](https://anaconda.org/rapidsai-nightly/cucim)
 
-> conda create -n cucim -c rapidsai-nightly -c conda-forge cucim cudatoolkit=`<CUDA version>`
+> conda create -n cucim -c rapidsai-nightly -c conda-forge cucim cuda-version=`<CUDA version>`
 
-`<CUDA version>` should be 11.0+ (e.g., `11.0`, `11.2`, etc)
+`<CUDA version>` should be 11.2+ (e.g., `11.2`, `12.0`, etc.)
 
 ### [PyPI](https://pypi.org/project/cucim/)
 
 ```bash
 pip install cucim
 
-# Install dependencies for `cucim.skimage` (assuming that CUDA 11.0 is used for CuPy)
-pip install scipy scikit-image cupy-cuda110
+# Install dependencies for `cucim.skimage` (CuPy can target CUDA 11 or CUDA 12)
+pip install scipy scikit-image <cupy-cuda11x or cupy-cuda12x>
 ```
 
 ### Notebooks