Fix a typo in help command

Author: kyb3r

cogs/utility.py

@@ -60,7 +60,7 @@ def format_cog_help(self, ctx, cog):
             else:
                 em.add_field(name=u'\u200b', value=i)
 
-        em.set_footer(text=f'Type "{prefix}command" for more info on a command.')
+        em.set_footer(text=f'Type "{prefix}help command" for more info on a command.')
         return em
 
     def format_command_help(self, ctx, cmd):