Update README.md

README.md

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-Kaggle's "Scripts" feature allows users to run scripts against our competition data sets without having to download data or set up their environment. Here's [an example](https://www.kaggle.com/users/213536/vasco/predict-west-nile-virus/west-nile-heatmap).
+**Kaggle's Scripts** allow users to run scripts against our competition data sets without having to download data or set up their environment. Here's [an example](https://www.kaggle.com/users/213536/vasco/predict-west-nile-virus/west-nile-heatmap):
 
-This is the Docker image used for running R scripts on Kaggle. [Here's](https://registry.hub.docker.com/u/kaggle/python/) the Docker image on Dockerhub.
+![example script](https://i.imgur.com/GrZ7diw.png)
+
+This is the Dockerfile (etc.) used for building the image that runs R scripts on Kaggle. [Here's](https://registry.hub.docker.com/u/kaggle/python/) the Docker image on Dockerhub
+
+**We welcome pull requests** if there are any packages you'd like to add!