suggested updates for Style Checker

[cjschroder]

1. Harmonize with the Style Guide
2. Improve or remove:
   • too-long sentences
   • callouts limited to 10
   • procedures limited to 10
   • computer elements
   • too-long URLs check
3. improve: wordy phrases check
4. terminology: remove "due to" "need to" "please" check, align with terminology database

Note that the style checker is used most often before a new SLE release, so we have some months to work on this. Hopefully we can make it useful enough for writers to use it routinely.