10.10 Projected Expanded Entity - be more explicit in combined $select/$expand cases

Clarify text of 10.9 – if nav prop is in select, appears without parens. if nav prop is in expand with no select, expand, or recursion MAY NOT appear in the context url for 4.0, MUST appear for 4.01 (with empty parens if no nested select). If nav prop is in expand with recursion, it's followed by a + If nav prop is in expand with select list (or expand with select) then it's followed by parens (following the +, if present) If both, both appear Make sure 10.10 is consistent with clarified wording from 10.9.