Adds some example .monster files.

monsters/elven warden.monster

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+{"name":"Elven Warden","size":"medium","type":"humanoid","tag":"elf","alignment":"chaotic good","hitDice":"10","armorName":"studded leather","shieldBonus":0,"natArmorBonus":3,"otherArmorDesc":"13 (leather armor)","speed":"30","burrowSpeed":"0","climbSpeed":"0","flySpeed":"0","hover":false,"swimSpeed":"0","customHP":false,"customSpeed":false,"hpText":"16 (3d8 + 3)","speedDesc":"30 ft.","strPoints":"15","dexPoints":"18","conPoints":"14","intPoints":"15","wisPoints":"11","chaPoints":"14","blindsight":"0","blind":false,"darkvision":"60","tremorsense":"0","truesight":"0","telepathy":0,"cr":"2","customCr":"1/2 (100 XP)","customProf":2,"isLegendary":false,"legendariesDescription":"The scout 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 scout regains spent legendary actions at the start of its turn.","isLair":false,"lairDescription":"When fighting inside its lair, the scout can invoke the ambient magic to take lair actions. On initiative count 20 (losing initiative ties), the scout can take one lair action to cause one of the following effects:","lairDescriptionEnd":"The scout 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 scout's lair is warped by the creature's presence, which creates one or more of the following effects:","regionalDescriptionEnd":"If the scout dies, the first two effects fade over the course of 3d10 days.","properties":[],"abilities":[{"name":"Fey Ancestry","desc":"The elven scout has advantage on saving throws against being charmed, and magic can’t put them to sleep."}],"actions":[{"name":"Multiattack","desc":"The elven warden makes three melee attacks: two with their longsword and one with their dagger. Or the warden makes two ranged at- tacks with their daggers."},{"name":"Longsword","desc":"_Melee Weapon Attack:_ +5 to hit, reach 5 ft., one target. _Hit:_ 6 (1d8 +2) slashing damage, or 7 (1d10 +2) slashing damage if used with both hands."},{"name":"Dagger","desc":"_Melee or Ranged Weapon Attack:_ +5 to hit, reach 5 ft. or range 20/60 ft., one target. _Hit:_ 5 (1d4 +3) piercing damage."}],"reactions":[{"name":"Parry","desc":"The elven warden adds 2 to its AC against one melee attack that would hit it. To do so, the elven warden must see the attacker and be wielding a melee weapon."}],"legendaries":[],"lairs":[],"regionals":[],"sthrows":[{"name":"str","order":0},{"name":"dex","order":1},{"name":"wis","order":4}],"skills":[{"name":"athletics","stat":"str"},{"name":"deception","stat":"cha"}],"damagetypes":[],"specialdamage":[],"conditions":[],"languages":[{"name":"Common","speaks":true},{"name":"Elvish","speaks":true}],"understandsBut":"","shortName":"","doubleColumns":false,"separationPoint":1,"damage":[]}