From Itora Wiki

This template takes the first unnamed parameter from {{ep}} and returns the name of the corresponding episode.  It can also accept the parameter {{{CxEE}}} to return the [Chapter]x[Episode] code.

Important Note:

When an episode title contains an apostrophe, ampersand, or double-quotation mark, the switch must contain an option with each of those characters replaced by their HTML entities.  For more info, see this ticket.