Merge pull request #891 from mslacken/NodeSpecificFiles

added example for host specific files

userdocs/contents/overlays.rst

@@ -143,7 +143,7 @@ permissions, etc.
 
 ..
   note::
-  There is now possibility to delete files with an overlay! [example needed]
+  There is no possibility to delete files with an overlay!
 
 Build
 -----

userdocs/contents/templating.rst

@@ -211,3 +211,17 @@ A given string can be split into substrings.
   {{ $x := "a:b:c" -}}
   {{ $y := (split $x ":") -}}
   {{ range $y }} {{.}} {{ end }}
+
+
+Node specific files
+-------------------
+
+Sometimes there is the need to have specific files for every node 
+which can't be generated by a template. You can include these files
+with following template:
+
+.. code-block:: go
+
+  {{- $filename := print "/root/" .Id "-payload" }}
+  {{ Include $filename }}
+