text: Title: Maybe error in Tips & Tricks example
  Body: Hey, 
  
  again, BERTopic is great. 
  
  Just stumbled across a line in [Tips & Tricks KeyBERT & BERTopic](https://maartengr.github.io/BERTopic/getting_started/tips_and_tricks/tips_and_tricks.html#keybert-bertopic)
  I think it should be
  
  _#Create our vocabulary
  vocabulary = [k[0] for k in keyword]_