[css-text-3] Conformant use of text-transform

[mozilla-apprentice]

A resolution was made for csswg-drafts/#8279.

[css-text-3] Conformant use of text-transform

• RESOLVED: Make the authoring advice for text-transform normative

Discussion.

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[dholbert]

This was just adding some authoring advice to the spec; nothing that we need to take action on.