changed the message to "please" instead of "you"

resource/locales/en_US/translation.json

@@ -158,7 +158,7 @@
   },
   "not_found_page": {
     "Create Page": "Create Page",
-    "page_not_exist_alert": "This page does not exist. You will need to create a new page."
+    "page_not_exist_alert": "This page does not exist. Please create a new page."
   },
   "installer": {
     "setup": "Setup",

resource/locales/zh_CN/translation.json

@@ -158,7 +158,7 @@
   },
   "not_found_page": {
     "Create Page": "Create Page",
-    "page_not_exist_alert": "This page does not exist. You will need to create a new page."
+    "page_not_exist_alert": "This page does not exist. Please create a new page."
   },
 	"installer": {
 		"setup": "安装",