applications/test/dictionary: Added comments to the new test dictionaries

applications/test/dictionary/testSlashDict

@@ -13,6 +13,8 @@ FoamFile
     object      testSlashDict;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// To expand this dictionary run
+//     foamDictionary testSlashDict
 
 #inputSyntax slash;
 

applications/test/dictionary/testSlashDict2

@@ -13,6 +13,7 @@ FoamFile
     object      testSlashDict;
 }
 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
+// This dictionary is read by entries in testSlashDict
 
 #inputSyntax slash;