DMN11 — Incorporate AB feedback into the FTF Report, the marked-up specification, and the clean specification

In the FTF Report,
for DMNFTF-6 and DMNFTF-17, use the format Replace <old text> with <new text>,
for DMNFTF-93, also use Replace/with, and identify the old text as all occurrences of invokes in 11.3, and
for DMNFTF-221, describe the change as a restoration of the relative text positions that were unintentionally changed by a prior edit.

In the specification,
make changes to mark-up and comments as described in the subtask (issue 246).

automatically transferred from FTF

nothing to do in RTF