added dictionary_compression.c example

examples/dictionary_decompression.c

@@ -132,5 +132,5 @@ int main(int argc, const char** argv)
     int u;
     for (u=1; u<argc-1; u++) decompress(argv[u], dictPtr);
 
-    printf("All %u files decoded. \n", argc-2);
+    printf("All %u files correctly decoded (in memory) \n", argc-2);
 }