Consistent case at start of sentence

[bernhardmgruber]

On some slides, the sentences of each bullet item start with an uppercase letter, and on other slides, they start with a lowercase letter. This should be consistent for all slides. Which style would you prefer? Upper- or lowercase?

[hageboeck]

I prefer upper case

[stale]

This issue or pull request has been automatically marked as stale because it has not had recent activity. Please manually close it, if it is no longer relevant, or ask for help or support to help getting it unstuck. Let me bring this to the attention of @klieret @wdconinc @michmx for now.