KNW-1502 fixed section header for label section

Author: sebkir

src/common/de/labels.asciidoc

@@ -198,7 +198,7 @@ Die Label-Ausgabe ist hierbei als Python Dictionary zu formatieren, wie im folge
 
 [{shell-raw}]
 ----
-<<<labels>>>
+<<<labels:sep(0)>>>
 {"cpu/vendor": "zilog"}
 ----
 

src/common/en/labels.asciidoc

@@ -157,7 +157,7 @@ The label output is to be formatted as a Python dictionary, as in the following
 
 [{shell-raw}]
 ----
-<<<labels>>>
+<<<labels:sep(0)>>>
 {"cpu/vendor": "zilog"}
 ----