Fixed achievement by adding Humanoid Tag to Peasant, Sorry!

To clarify: Only these units are humanoids:

Archer

Chef

Digger

Maid

Militia

Peasant

Furry

Gladiator

Miner

Pharaoh

Wizard

Heavy Knight

Necro

Ninja

Plague Doctor

Thief

Time Hero

Angel

Death

Pirate

Priest

Santa

Apache

Executioner

Fire Mage

Hellsing

Iron Knight

Samurai

Vampire

Elite Archer

Elite Knight

Elite Mage