GLASGOW (Reuters) – Scotland began their Nations League campaign with a 2-0 win over Armenia on Wednesday as Anthony Ralston and Scott McKenna scored their first international goals. Scotland dominated the game and took the lead through Ralston when he made a run to the far post where the wing back — making his full debut — connected with Stuart Armstrong’s cross to head the ball across goal and into the net. Defender Scott McKenna struck five minutes before halftime with a towering header from John McGinn’s corner and he also had an effort from point-blank range ruled out by VAR for an offs…