Added README.md

Author: rickecon

README.md

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-# CompMethods
-"Computational Methods for Economists using Python", by Richard W. Evans. Tutorials and executable code in Python for the most commonly used computational methods in economics.
+# *Computational Methods for Economists using Python*, by Richard W. Evans
+This repository contains the source material, code, and data for the book, [*Computational Methods for Economists using Python*](), by Richard W. Evans (2023). This book is freely available online as an executable Jupyter Book at [url to book]().
+
+The materials for the book are constantly being updated. The version number listed in the [Releases](https://github.com/OpenSourceEcon/CompMethods/releases) section of the repository tracks the updates, as well as the [`CHANGELOG.md`](CHANGELOG.md) file.
+
+As an open executable book project, this book is happy to receive, address, and incorporate collaborative additions, corrections, suggestions, and questions. Please see the [Contributor Guide]() in the book or the [CONTRIBUTING.md](CONTRIBUTING.md) markdown file in this repository for how to best collaborate with the project.
+
+[Richard W. Evans, Phd](https://sites.google.com/site/rickecon) ([@rickecon](https://github.com/rickecon)) is the author of the book and the core maintainer of this repository.
+
+## Citing this book
+Please use the following citation for this book.
+
+General citation to the book:
+* Evans, Richard W., *Computational Methods for Economists using Python*, Open access Jupyter Book, v#.#.#, 2023, [url to book].
+
+Citation to a chapter in the book:
+* Evans, Richard W., "[insert chapter name]", in *Computational Methods for Economists using Python*, Open access Jupyter Book, v#.#.#, 2023, [url to chapter].