How could I use the code below to go through a folder of documents and get each documents vector value, and then average the overall value? 

```
documents_list = ['Hello, world','Here are two sentences.']
for doc in documents_list:
    doc_nlp = nlp(doc)
    print(doc_nlp.vector)
    for token in doc_nlp:
        print(token.text,token.vector)

```