Fix examples

README.md

@@ -16,7 +16,13 @@ Given a map of element and the frequency the following image is generated. More
 (ns examples
   (:require [clj-wordcloud.core :refer :all]))
 
-(let [frequency-map (zipmap (random-words 100) (shuffle (range 300)))
+(def programming-languages ["Clojure" "Haskell" "Go" "Rust" "Scala" "Python" "Perl"
+                            "Ruby" "Smalltalk" "PHP" "Java" "JavaScript"
+                            "C" "C++" "Lisp" "Scheme" "Typescript" "D" "R" "Brainfuck" "Elixir"
+                            "Erlang" "C#" "BASIC" "Logo" "Alice" "Dart" "Purescript" "Prolog"
+                            "Ada" "F#" "Julia" "Kotlin" "Swift" "Delphi"])
+
+(let [frequency-map (zipmap programming-languages (shuffle (range 300)))
       word-cloud    (word-cloud frequency-map
                                 {:dimension  {:width  600
                                               :height 600}