The second paragraph of the added description for the -L option
"<start> and <end> can take one of these forms:", and the list of
forms that follow the headline, were indented one level too short,
due to the missing "+" to signal that the next paragraph continues
the previous one.
Also "You can specify this option more than once" is about the -L
option, not about its various forms of starting and ending points.
Move it to the end of the main text.