Add mod documentation in seven languages

locale/en.properties

@@ -1,5 +1,5 @@
 mod_equipment_name = Equipment
-mod_equipment_desc = Gear for any game with stats: slots as data (weapon, armour, accessory — or an outfit and jewellery in a novel); an item becomes gear by two keys of its own JSON (“Equip” — the type, “Traits” — what it gives while worn). What is worn feeds the stats, so battles, checks and conditions change at once. Put on through the inventory's usual target picker; actions equip.put and equip.remove; condition equipped(who, item).
+mod_equipment_desc = Wearable gear for any game with stats: slots as data, items become equipment by their JSON keys, and worn bonuses flow into sheets, battles, checks and conditions at once.
 equipment/verb_equip = Equip
 equipment/not_gear = This cannot be worn.
 equipment/no_slot = There is no slot for this.