Update Readme

targets/DOCS/NB-IoT_Docs/Readme

@@ -21,7 +21,7 @@ Advisor : Prof.Ray Guang, Cheng 	crg@mail.ntust.edu.tw
 The response block for each person:
 
 Scheduling:Eric	                    qqq1993qqq029@gmail.com
-DownlinkProcedure:Xavior/Alan       sephiroth7277@gmail.com/Rely4679@gmail.com
+DownlinkProcedure:Xavier/Alan       sephiroth7277@gmail.com/Rely4679@gmail.com
 UplinkProcedure:Nick                nick133371@gmail.com
 Config:Kenny                        kroempa@gmail.com
 SystemInformation:Calvin            calvin820119@gmail.com