Add mod documentation in seven languages

locale/en.properties

@@ -1,5 +1,5 @@
 mod_stat_checks_name = Stat Checks
-mod_stat_checks_desc = Stat checks in any scenario: “check cha 12 -> :success” rolls a stat plus dice against a difficulty, shows the outcome line and branches the story — talking a guard round in a novel, forcing a door in an RPG. The roll stays in dialog variables for lines of your own. Dice default to the game setting checks.dice, else d20; dice=none makes a plain threshold.
+mod_stat_checks_desc = One scenario command, check: roll a character's stat plus dice against a difficulty and branch the story on success or failure.
 checks/line = [${check_stat}: ${check_total} vs ${check_dc}] ${check_result}
 checks/success = Success
 checks/failure = Failure