v0.3.1d: fixed a typo in venom gas

src/com/shatteredpixel/shatteredpixeldungeon/actors/blobs/VenomGas.java

@@ -77,6 +77,6 @@ public class VenomGas extends Blob {
 
 	@Override
 	public String tileDesc() {
-		return "A could of foul acidic venom is swirling here.";
+		return "A cloud of foul acidic venom is swirling here.";
 	}
 }