Update README.md

Author: baponkar

README.md

@@ -1,5 +1,5 @@
 # GUI LINUX UPDATE , UPGRADE BASH SHELL SCRIPT
 -----------------------------------------------------------------------------------------------------------------------------
 This Script using zenity gui.If Your's linux system has not zenity package then first you should need to install this by using
-"sudo apt-get install zenity"
-then this script works properly
+`sudo apt-get install zenity`
+then this script works properly by `./gui_update_1.sh`.