Adds some example .monster files.

monsters/hell hound.monster

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+{"name":"Hell Hound","size":"medium","type":"fiend","tag":"","alignment":"lawful evil","hitDice":7,"armorName":"natural armor","shieldBonus":0,"natArmorBonus":4,"otherArmorDesc":"15 (natural armor)","speed":50,"burrowSpeed":0,"climbSpeed":0,"flySpeed":0,"hover":false,"swimSpeed":0,"customHP":false,"customSpeed":false,"hpText":"7","speedDesc":"50 ft.","strPoints":17,"dexPoints":12,"conPoints":14,"intPoints":6,"wisPoints":13,"chaPoints":6,"blindsight":0,"blind":false,"darkvision":60,"tremorsense":0,"truesight":0,"telepathy":0,"cr":"3","customCr":"3 (700 XP)","customProf":2,"isLegendary":false,"legendariesDescription":"The hell hound can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. The hell hound regains spent legendary actions at the start of its turn.","isLair":false,"lairDescription":"When fighting inside its lair, the hell hound can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the hell hound can take one lair action to cause one of the following effects:","lairDescriptionEnd":"The hell hound can't repeat an effect until they have all been used, and it can't use the same effect two rounds in a row.","isRegional":false,"regionalDescription":"The region containing the hell hound's lair is warped by the creature's presence, which creates one or more of the following effects:","regionalDescriptionEnd":"If the hell hound dies, the first two effects fade over the course of 3d10 days.","properties":[],"abilities":[{"name":"Keen Hearing and Smell","desc":"The hound has advantage on Wisdom (Perception) checks that rely on hearing or smell."},{"name":"Pack Tactics","desc":"The hound has advantage on an attack roll against a creature if at least one of the hound's allies is within 5 ft. of the creature and the ally isn't incapacitated."}],"actions":[{"name":"Bite","desc":"_Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 7 (1d8 + 3) piercing damage plus 7 (2d6) fire damage."},{"name":"Fire Breath (Recharge 5-6)","desc":"The hound exhales fire in a 15-foot cone. Each creature in that area must make a DC 12 Dexterity saving throw, taking 21 (6d6) fire damage on a failed save, or half as much damage on a successful one."}],"reactions":[],"legendaries":[],"lairs":[],"regionals":[],"sthrows":[],"skills":[{"name":"perception","stat":"wis","note":" (ex)"}],"damagetypes":[{"name":"fire","note":" (Immune)","type":"i"}],"specialdamage":[],"conditions":[],"languages":[{"name":"Infernal","speaks":false}],"understandsBut":"can't speak it","shortName":"","doubleColumns":false,"separationPoint":1,"damage":[]}