Add contributing and readme files

CONTRIBUTING.md

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+Want to contribute? Great! First, read this page (including the small print
+at the end).
+
+### Before you contribute
+Before we can use your code, you must sign the
+[Google Individual Contributor License
+Agreement](https://cla.developers.google.com/about/google-individual)
+(CLA), which you can do online. The CLA is necessary mainly because you own the
+copyright to your changes, even after your contribution becomes part of our
+codebase, so we need your permission to use and distribute your code. We also
+need to be sure of various other things—for instance that you'll tell us if you
+know that your code infringes on other people's patents. You don't have to sign
+the CLA until after you've submitted your code for review and a member has
+approved it, but you must do it before we can put your code into our codebase.
+Before you start working on a larger contribution, you should get in touch with
+us first through the issue tracker with your idea so that we can help out and
+possibly guide you. Coordinating up front makes it much easier to avoid
+frustration later on.
+
+### Code reviews
+All submissions, including submissions by project members, require review. We
+use Github pull requests for this purpose.
+
+### The small print
+Contributions made by corporations are covered by a different agreement than
+the one above, the
+[Software Grant and Corporate Contributor License
+Agreement](https://cla.developers.google.com/about/google-corporate).

README.md

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+# fontmake
+
+This library provides a wrapper for several other Python libraries which
+together compile fonts from various sources (.glyphs, .ufo) into binaries (.otf,
+.ttf).
+
+### Install
+
+```bash
+sudo python setup.py install
+```
+
+### Run
+
+After installation, fontmake can be run end-to-end as a module:
+
+```bash
+# outputs master binaries
+python -m fontmake MyFont.glyphs
+```
+
+Use `-h` to see a list of runtime options. `-i` will output instance binaries,
+`-c` will ensure the output is interpolation compatible (for both masters and
+instances).
+
+You can also use fontmake to run intermediate steps in the build process, via
+methods of the `fontmake.font_project.FontProject` class.