code for `cosine-sim` in the docs is incomplete

[holtzermann17]

The definition of cosine-sim in the docs isn't a complete s-exp. Luckily the function is defined in examples.clj:

(defn cosine-sim
  [model word1 word2]
  (let [rawvecfn  #(.getRawVector (.forSearch model) %)
        [a1 a2] (map rawvecfn [word1 word2])]
    (i-stat/cosine-similarity a1 a2)))

[shark8me]

Fixed in the new repo (https://github.com/shark8me/clojure-word2vec/blob/master/doc/intro.md).

The latest version of the base implementation has native Cosine Similarity as well (https://github.com/medallia/Word2VecJava/blob/master/src/main/java/com/medallia/word2vec/SearcherImpl.java#L38).