Prep release

[Danp2]

Pull request

Proposed changes

Update documentation (readme and changelog) in preparation for next release

Checklist

Put an x in the boxes that apply. If you're unsure about any of them, don't hesitate to ask. We are here to help!
This is simply a reminder of what we are going to look for before merging your code.

• [x] I have read and noticed the CODE OF CONDUCT document
• [x] I have read and noticed the CONTRIBUTING document
• [ ] I have added necessary documentation or screenshots (if appropriate)

Types of changes

Please check x the type of change your PR introduces:

• [ ] Bugfix (change which fixes an issue)
• [ ] Feature (change which adds functionality)
• [x] Code style update (formatting, renaming)
• [ ] Refactoring (functional, structural)
• [x] Documentation content changes
• [ ] Other (please describe)

Additional context

• [x] Update readme.md
• [x] Update changlog.md
• [x] Update $__WDVERSION in wd_core.au3
• [x] Rebuild help file
• [x] Tidy code

System under test

N/A