consider code example/snippets visual style

[shawna-slh]

Reconsider the visual style of code.

In some (or all) places we probably want it more visually distinct. For example, in ACT Rules. (See example of style in community group drafts.)

Where else is <code> used and would we want the same style in all places, or a couple of different styles for different situations?

<code> is in:

• ACT Rules
• Tips for Developing — note that is is already in a box
• Changelogs — note that some is inline, not block.
• • Techniques
• @@ check for others ...