Marked various mode-link as inside.

Observations:

- When marked inside, moving the mouse to <A> and clicking the context menu becomes easier,
  because you can move the mouse toward the hot spot area and it'll activate.
  Otherwise you have to move the mouse over to <A>, then move the mouse on the side, click it,
  then click the menu, which adds cognitive stress.

- Marking model link as inside creates an empty space to the right of <A>, which looks
  odd if hyperlinks appear inline or if some other text follows it.

Given that, my guiding principle for this change is:

- any model link that is the last child of a block element gets marked as inside
- I've adjust a few text to get rid of the single-letter training text after a model link,
  like "(#3)" to "- #3"
- If another inline element follows a model link, leave it as is.
  This does create an ugly overlap.