attempt to make koans more inclusive

src/koans/21_group_by.clj

@@ -19,20 +19,20 @@
   "You can also group by a primary key"
   (= __
      (group-by :id [{:id 1 :name "Bob"}
-                    {:id 2 :name "Mike"}
+                    {:id 2 :name "Jennifer"}
                     {:id 1 :last-name "Smith"} ]))
 
   "But be careful when you group by non-required key"
   (= {"Bob" [{:name "Bob" :id 1}]
-      "Mike" [{:name "Mike" :id 2}]
+      "Jennifer" [{:name "Jennifer" :id 2}]
       __ [{:last-name "Smith" :id 1}]}
    (group-by :name [{:id 1 :name "Bob"}
-                    {:id 2 :name "Mike"}
+                    {:id 2 :name "Jennifer"}
                     {:id 1 :last-name "Smith"}]))
 
   "The true power of group-by comes with custom functions"
   (= __
      (group-by #(if (:bad %) :naughty-list :nice-list)
                [{:name "Jimmy" :bad true}
-                {:name "Jack" :bad false}
+                {:name "Anna" :bad false}
                 {:name "Joe" :bad true}])))