fixed a typo in alchem skill quest

git-svn-id: https://svn.code.sf.net/p/rathena/svn/trunk@8498 54d463be-8e91-2dee-dedb-b68131a5f0ec

npc/quests/skills/alchemist_skills.txt

@@ -1,5 +1,5 @@
 //===== eAthena Script ======================================= 
-//= Blacksmith Skills Quests
+//= Alchemist Skills Quests
 //===== By: ================================================== 
 //= Lupus, Reddozen
 //===== Current Version: =====================================