Update README.md

README.md

@@ -23,11 +23,18 @@ Zamba2-2.7B-Instruct is a hybrid model composed of state-space ([Mamba2](https:/
 
 ### Prerequisites
 
-To download Zamba2-2.7B-instruct, clone Zyphra's fork of transformers:
-1. `git clone https://github.com/Zyphra/transformers_zamba2.git`
-2. `cd transformers_zamba2`
-3. Install the repository: `pip install -e .`
-4. `pip install accelerate`
+To use Zamba2-1.2B-instruct, install `transformers`:
+
+`pip install transformers`
+ 
+To install dependencies necessary to run Mamba2 kernels, install `mamba-ssm` from source (due to compatibility issues with PyTorch) as well as `causal-conv1d`:
+
+1. `git clone https://github.com/state-spaces/mamba.git`
+2. `cd mamba && git checkout v2.1.0 && pip install .`
+3. `pip install causal-conv1d`
+
+
+You can run the model without using the optimized Mamba2 kernels, but it is **not** recommended as it will result in significantly higher latency and memory usage. 
 
 
 ### Inference