text: Title:  Apply minor edits across core docs for enhanced readability
  Body: This is a good issue for anyone interested in docs to the point of applying a style guide to some markdown. There's no rewriting required (just small tweaks) and no knowledge of Vizro is expected.
  
  I think the core docs (and probably vizro-ai docs too) could benefit from a minor edit to improve their readability. This would involve the following steps:
  
  * Creating an informal "lexicon" or style guide (which could be added to the contribution guide)
  * Applying this across the docs
  * Creating a set of tickets if the readability review throws up a need to make further changes beyond minor word choices