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README.md

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+# Pen and paper exercises in machine learning
+[![CC BY 4.0][cc-by-shield]][cc-by]
+
+This is a collection of (mostly) pen-and-paper exercises in machine learning. 
+The work is licensed under a
+[Creative Commons Attribution 4.0 International License][cc-by].
+
+[cc-by]: http://creativecommons.org/licenses/by/4.0/
+[cc-by-shield]: https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg
+
+## Usage
+Under linux, you can compile the collection with `make`. To remove temporary files, use `make clean`. 
+
+By default, the compiled document includes the solutions for the exercises. To
+compile a document without the solutions, uncomment `\SOLfalse` and comment `\SOLtrue` in `main.tex`.
+
+## Contributing
+Please use GitHub's issues to report mistakes or typos. I would welcome
+community contributions. Please get in touch to discuss options. My contact
+information is available [here](https://michaelgutmann.github.io/).
+