add graph image to list functions page (#260)

Author: JPryce-Aklundh

modules/ROOT/images/graph_list_functions.svg

@@ -19,53 +19,7 @@ Functions:
 * xref:functions/list.adoc#functions-tointegerlist[toIntegerList()]
 * xref:functions/list.adoc#functions-tostringlist[toStringList()]
 
-
-.Graph
-["dot", "List functions-1.svg", "neoviz", ""]
-----
-  N0 [
-    label = "{Person, Developer|name = \'Alice\'\lage = 38\leyes = \'brown\'\l}"
-  ]
-  N0 -> N2 [
-    color = "#2e3436"
-    fontcolor = "#2e3436"
-    label = "KNOWS\n"
-  ]
-  N0 -> N1 [
-    color = "#2e3436"
-    fontcolor = "#2e3436"
-    label = "KNOWS\n"
-  ]
-  N1 [
-    label = "name = \'Bob\'\lage = 25\leyes = \'blue\'\l"
-  ]
-  N1 -> N3 [
-    color = "#2e3436"
-    fontcolor = "#2e3436"
-    label = "KNOWS\n"
-  ]
-  N1 -> N4 [
-    color = "#4e9a06"
-    fontcolor = "#4e9a06"
-    label = "MARRIED\n"
-  ]
-  N2 [
-    label = "name = \'Charlie\'\lage = 53\leyes = \'green\'\l"
-  ]
-  N2 -> N3 [
-    color = "#2e3436"
-    fontcolor = "#2e3436"
-    label = "KNOWS\n"
-  ]
-  N3 [
-    label = "name = \'Daniel\'\lage = 54\leyes = \'brown\'\l"
-  ]
-  N4 [
-    label = "eyes = \'blue\'\larray = \[\'one\', \'two\', \'three\'\]\lname = \'Eskil\'\lage = 41\l"
-  ]
-
-----
- 
+image:graph_list_functions.svg[]
 
 [[functions-keys]]
 == keys()