His/her -> their, He/she -> they

doc/documentation.lyx

@@ -436,7 +436,7 @@ The other necessary skill for playing Blades of Exile is casting spells:
 \begin_layout Standard
 The easiest way to cast a spell is to use the Mage Spells or Priest spells
  menus.
- To have a PC cast a spell, click on his/her name to make the PC active.
+ To have a PC cast a spell, click on their name to make the PC active.
  The Mage Spells (or Priest Spells) menu will list all available spells.
  Select the spell to cast it.
  If it's a spell cast on another character, like Minor Heal, you'll be asked
@@ -1956,7 +1956,7 @@ The items available will be listed, along with their prices, and, if weapons
  item's right.
  To buy it, click on the item's name.
  To have a different character shop, make that character active (click on
- his/her name, or type 1-6).
+ their name, or type 1-6).
 \end_layout
 
 \begin_layout Standard