Notice Types word smithing
In the Notice Types section, consider changing the "Initial GCN Notice" definition from, "GCN Circular which should" to "GCN Circular that should" (or add a comma).
Also get ready to add something about multiple preliminary notices for O3b.
Syntax for scoping some information as CBC only is inconsistent:
- Sky localization: A and (CBC candidates only) B
- Inferences: A and B (CBC candidates only) In on case the scoping rule is before, and for the other after.