DOC: Add notes explaining params is db driver dep. GH7573
This is my first PR.  It's just an update to two doc strings.

Closes #7573 

Yep, that is looking good. 
We always ask to 'squash' multiple commits that belong together into one commit. You can easily do that with:

```
git rebase -i HEAD~2
```

and then replace 'pick' with 'squash' (for the second commit) (see eg https://ariejan.net/2011/07/05/git-squash-your-latests-commits-into-one/). And then you have to force push:

```
git push -f origin SQL_params_note
```
 Done.  Thanks for the help.
 @jnmclarty Thanks a lot!
