fixed new tense structure in next-resourc/demo

lib/next-resource/demo/DemoGer.gf

@@ -0,0 +1,16 @@
+--# -path=.:alltenses
+
+concrete DemoGer of Demo = 
+  NounGer,
+  ClauseGer,
+  AdjectiveGer,
+  AdverbGer,
+  NumeralGer,
+  QuestionGer,
+  StructuralGer,
+  LexiconGer
+  ** {
+
+flags language = de; unlexer = text ; lexer = text ;
+
+} ;