Update README

Add in an additional package for setup

README.md

@@ -2652,6 +2652,7 @@ Using this model becomes relatively easy when you have [sentence-transformers](h
 *At the time of publishing, sentence-transformers does not support remote code which is required for flash-attention used by the model. A fork of the sentence-transformers repository that allows remote code execution is provided for convenience. It can be installed using the following command:*
 ```
 pip install git+https://github.com/Hum-Works/sentence-transformers.git
+pip install einops
 ```
 
 Then you can use the model like this: