fix for "unexpected keyword argument 'embeddings'"

[coolvision]

I kept getting an error:

chroma_collection = cls(
TypeError: __init__() got an unexpected keyword argument 'embeddings'

when installing the server, fixed with changing "embeddings" to "embedding" in:

        # db = Chroma.from_documents([nothing_doc,nothing_doc,nothing_doc],persist_directory=CHROMA_PERSIST_DIRECTORY, embeddings=embeddings)
        db = Chroma.from_documents([nothing_doc,nothing_doc,nothing_doc],persist_directory=CHROMA_PERSIST_DIRECTORY, embedding=embeddings)