deletions | additions       diff --git a/Linking and Executing Code.md b/Linking and Executing Code.md  index ad6f790..bb8a395 100644  --- a/Linking and Executing Code.md  +++ b/Linking and Executing Code.md 
...
## Executable Figures  iPython Notebooks offer a nice modern example of how published figures can be made "executable." These notebooks act as code that can be annotated and executed on the web, allowing an interested reader to study and even modify a copy of the underpinning code, without contacting the authors or initiating a long investigation. the dust map of Ophiuchus inserted as a figure below (courtestsy of Hope Chen) offers an example of the iPython functionality. The [colaboratory](https://colaboratory.jupyter.org/welcome/) service is an interesting new alternative to running a hosted iPython solution.