GEMS16 — Terminology between picture and text is confusing

In section 8.2.3, figure mentions a 'sequence number', though text that follows uses the term of 'transaction number'.

Use of sequence number implies it is incrementing whereas transaction number does not. This is causing confusion about how the field is to be used.

Fix the diagram to say Transaction ID instead of Sequence Number

In section 8.2.3 on page 63, change the text in the diagram per the Revised Text field below.