Update 'README.md'

README.md

@@ -7,5 +7,5 @@ to install:
 
 resources used during tutorial:
 - address to centurio user interface: http://192.168.20.123/ui
-- test created php files at: http://192.168.20.123/workshop/\<folder\>/\<php_file\>
+- test created php files at: http://192.168.20.123/workshop/\\<folder\>/\<php_file\>
 - ftp connection to: 192.168.20.123