Update docs for new requirements.txt path

Signed-off-by: Marcus Köhler <khler.marcus@gmail.com>

docs/content/features/embeddings.md

@@ -75,7 +75,10 @@ The `sentencetransformers` backend uses Python [sentence-transformers](https://g
 
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-- The `sentencetransformers` backend is an optional backend of LocalAI and uses Python. If you are running `LocalAI` from the containers you are good to go and should be already configured for use. If you are running `LocalAI` manually you must install the python dependencies (`pip install -r /path/to/LocalAI/extra/requirements`) and specify the extra backend in the `EXTERNAL_GRPC_BACKENDS` environment variable ( `EXTERNAL_GRPC_BACKENDS="sentencetransformers:/path/to/LocalAI/backend/python/sentencetransformers/sentencetransformers.py"` ) .
+- The `sentencetransformers` backend is an optional backend of LocalAI and uses Python. If you are running `LocalAI` from the containers you are good to go and should be already configured for use.
+- If you are running `LocalAI` manually you must install the python dependencies (`make prepare-extra-conda-environments`). This requires `conda` to be installed.
+- For local execution, you also have to specify the extra backend in the `EXTERNAL_GRPC_BACKENDS` environment variable.
+    - Example: `EXTERNAL_GRPC_BACKENDS="sentencetransformers:/path/to/LocalAI/backend/python/sentencetransformers/sentencetransformers.py"`
 - The `sentencetransformers` backend does support only embeddings of text, and not of tokens. If you need to embed tokens you can use the `bert` backend or `llama.cpp`.
 - No models are required to be downloaded before using the `sentencetransformers` backend. The models will be downloaded automatically the first time the API is used.