typo fix

was missing half the name Shirakawa

Update/onik_tips_15.txt

@@ -238,7 +238,7 @@ void main()
 //　　白川自然公園転落事故（６月ＸＸ日発生）
 	if (GetGlobalFlag(GADVMode)) { OutputLineAll("", NULL, Line_ContinueAfterTyping); }
 	OutputLine(NULL, "　　白川自然公園転落事故（６月ＸＸ日発生）",
-		   NULL, "Shira natural park falling incident (Dated June XX)", Line_ContinueAfterTyping);
+		   NULL, "Shirakawa natural park falling incident (Dated June XX)", Line_ContinueAfterTyping);
 
 	FadeOutBGM( 2, 10, TRUE );
 	OutputLineAll(NULL, "", GetGlobalFlag(GLinemodeSp));