units: Add a po comment in Elvish High Lord.

data/core/units/elves/High_Lord.cfg

@@ -15,6 +15,7 @@
     {AMLA_DEFAULT}
     cost=56
     usage=fighter
+    # po: "awesome" is used here in the sense of "causing awe", not in the sense of "very good".
     description= _ "The leaders of elvenkind command an instinctive loyalty from their people that rulers of other races can only envy, and earn it with great mindfulness and wisdom. Quiet and contemplative in times of peace, a High Lord in the full of his wrath is an awesome sight indeed."+{SPECIAL_NOTES}+{SPECIAL_NOTES_MAGICAL}+{SPECIAL_NOTES_ARCANE}
     die_sound={SOUND_LIST:ELF_HIT}
     [defend]