fixed documentation

Author: louisponet

docs/src/guide/advanced_tutorial.jl

@@ -7,7 +7,7 @@
 using DFControl
 
 using UUIDs#hide
-s = Server(name="localhost", port=8080, domain = "localhost", scheduler = Bash(), uuid = uuid4(), julia_exec=Sys.BINDIR * "/julia")#hide
+s = Server(name="localhost", port=8080, domain = "localhost", scheduler = Servers.Bash(), uuid = uuid4(), julia_exec=Sys.BINDIR * "/julia")#hide
 if !exists(s)#hide
     save(s)#hide
 end#hide