integrate DocumentationSlv with the rest of the grammar

src/slovenian/DocumentationSlv.gf

@@ -1,5 +1,5 @@
 --# -path=.:../abstract:../common
-concrete DocumentationSlv of Documentation = CatSlv,LexiconSlv ** open 
+concrete DocumentationSlv of Documentation = CatSlv ** open 
   ResSlv,
   HTML in {
 flags coding=utf8 ;

src/slovenian/LangSlv.gf

@@ -1,7 +1,8 @@
 concrete LangSlv of Lang =
   GrammarSlv,
   LexiconSlv,
-  ConstructionSlv
+  ConstructionSlv,
+  DocumentationSlv
 
   ** {