added doseq example for maps

src/main/resources/com/github/jlangch/venice/core.venice

@@ -1131,7 +1131,8 @@
           "(doseq [x (range 10) :when (odd? x)] (print x))"
           "(doseq [x (range 10) :when (odd? x)] (print (* x 2)))"
           "(doseq [x [1 2 3] y [1 2 3]] (println [x y]))"
-          "(doseq [[x y] [[0 1] [1 2]]] (println [x y]))",
+          "(doseq [[x y] [[0 1] [1 2]]] (println [x y]))"
+          "(doseq [[k v] {:a 1 :b 2}] (println [k v]))",
           """
           (doseq [[c vals] (group-by count ["a" "as" "asd" "aa" "asdf" "qwer"])]
             (println c vals))