Add Micah to the contributor list & fix a couple typos.

README.md

@@ -98,6 +98,7 @@ omissions for existing koans.
 - Colin Jones
 - Eric Lavigne
 - Nuno Marquez
+- Micah Martin
 
 
 ### Credits

src/koans/creating_functions.clj

@@ -24,13 +24,11 @@
   (= 25 (let [inc-and-square (comp square inc)]
           (inc-and-square __)))
 
-  "Have a go on a tripple dec-er"
+  "Have a go on a double dec-er"
   (= __ (let [double-dec (comp dec dec)]
           (double-dec 10)))
 
-  "Becareful the order in which you mix your functions"
+  "Be careful the order in which you mix your functions"
   (= 99 (let [square-and-dec ___]
-           (square-and-dec 10)))
-  )
-
+           (square-and-dec 10))))