playbook: Improve grandenet message for request a token.

playbook/gnet-re6stnet.yml

@@ -10,7 +10,16 @@
 
   vars_prompt:
     - name: "re6sttoken"
-      prompt: "If you have re6st token if you have (ignore if you already have a configured re6st):"
+      prompt: "\n\n
+You are running the Grandenet Installer\n\n
+Please insert your token from Grandenet to configure your computer.\n
+If you don't have a token, please access http://www.grandenet.cn/en \n
+and request one. \n\n
+Move informations at http://www.grandenet.cn/en/documentation/user
+\n\n
+
+Your token
+"
       private: no 
       default: "notoken"