include download links on index docs page

Author: kMutagene

docs/index.fsx

@@ -14,7 +14,9 @@
 (**
 # Plotly.NET
  
-[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/plotly/Plotly.NET/gh-pages?filepath=index.ipynb)
+[![Binder]({{root}}img/badge-binder.svg)](https://mybinder.org/v2/gh/plotly/Plotly.NET/gh-pages?filepath={{fsdocs-source-basename}}.ipynb) 
+[![Script]({{root}}img/badge-script.svg)]({{root}}{{fsdocs-source-basename}}.fsx) 
+[![Notebook]({{root}}img/badge-notebook.svg)]({{root}}{{fsdocs-source-basename}}.ipynb)
 
 Plotly.NET provides functions for generating and rendering plotly.js charts in **.NET** programming languages 📈🚀.