message: Update embedding.md
  the string of https:// is revomed, I added it to help other people correctly look for reference about How to Use t-SNE Effectively
diff: @@ -120,7 +120,7 @@ data set.
  text patterns.
  Further useful articles are
  -[How to Use t-SNE Effectively](distill.pub/2016/misread-tsne/) and
  +[How to Use t-SNE Effectively](https://distill.pub/2016/misread-tsne/) and
  [Principal Component Analysis Explained Visually](http://setosa.io/ev/principal-component-analysis/).
  ### Exploration
  