message: Clickable link edit in documentation.
  Thank you for the Doc-Contributing tutorial (from GDG-Seattle)!
diff: @@ -1842,7 +1842,7 @@ class CosineSimilarity(MeanMetricWrapper):
  """Computes the cosine similarity between the labels and predictions.
  cosine similarity = (a . b) / ||a|| ||b||
  - (https://en.wikipedia.org/wiki/Cosine_similarity)
  + [Cosine Similarity](https://en.wikipedia.org/wiki/Cosine_similarity)
  For example, if `y_true` is [0, 1, 1], and `y_pred` is [1, 0, 1], the cosine
  similarity is 0.5.
  