Article II - Needs subsections 2.A and 2.B [From Robert's Notes]

[IgorPolotai]

Check one:

• [ ] Semantic Issue: something about the meaning of the text is different
• [x] Non-semantic Issue: Spelling, grammar, or formatting changes.

Summary of issue: Add a subsection 2.A in front of the line "Many of the commonly used abbreviations...", and a subsection 2.B before the abbreviations.

[esoccoli]

I believe we decided to just remove the sentence before the list of abbreviations, because it is redundant, and the title + content conveys what needs to be conveyed

[esoccoli]

I removed the sentence before the abbreviations list, and split it into a subsection for abbreviations, and another subsection for definitions

[esoccoli]

addressed by #216