Tutorial: Fix a missing capital in S1

data/campaigns/tutorial/scenarios/01_Tutorial_part_1.cfg

@@ -156,7 +156,7 @@
                 speaker=narrator
                 caption= _ "Welcome to Wesnoth!"
                 image=wesnoth-icon.png
-                message= _ "For this tutorial, you are playing Li’sar. You are standing on the keep, and your mentor Delfador is on the east side of the river. you can move the mouse over a unit to see a summary of its abilities and stats on the right of the screen." +
+                message= _ "For this tutorial, you are playing Li’sar. You are standing on the keep, and your mentor Delfador is on the east side of the river. You can move the mouse over a unit to see a summary of its abilities and stats on the right of the screen." +
                     {CONTINUE_MSG}
             [/message]
         )}