urvashi: add wrap up report for gsoc 2019

Author: ihsavru

developer_docs/project_wrapups/urvashi_gsoc_2019.md

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+# Improve p5.js unit tests
+### by Urvashi Verma ([@ihsavru](https://github.com/ihsavru))
+
+## Overview
+This project focused on improving the unit tests for different modules of p5.js. I spent my summer writing unit tests for different modules. I also worked on integrating the code coverage reports with Codecov through Travis CI. As of writing this report, the code coverage has been increased to 62.37%.
+
+## Contributions during GSoC'19
+I divided the timeline into smaller periods of a week or two to handle unit tests for each module. Following is a list of PRs submitted:
+#### Core
+- https://github.com/processing/p5.js/pull/3772
+- https://github.com/processing/p5.js/pull/3865
+
+#### Events
+- https://github.com/processing/p5.js/pull/3824
+- https://github.com/processing/p5.js/pull/3814
+- https://github.com/processing/p5.js/pull/3810
+- https://github.com/processing/p5.js/pull/3809
+
+#### Image
+- https://github.com/processing/p5.js/pull/3828
+- https://github.com/processing/p5.js/pull/3829
+- https://github.com/processing/p5.js/pull/3838
+
+#### Typography
+- https://github.com/processing/p5.js/pull/3839
+- https://github.com/processing/p5.js/pull/3844
+
+#### Utilities
+- https://github.com/processing/p5.js/pull/3864
+
+#### WebGL
+- https://github.com/processing/p5.js/pull/3896
+- https://github.com/processing/p5.js/pull/3902
+
+You can find the code coverage for p5.js on [Codecov](https://codecov.io/gh/processing/p5.js)
+
+### Documentation
+I have documented about how to approach writing a unit test in the [developer docs for unit testing](https://github.com/processing/p5.js/blob/master/developer_docs/unit_testing.md) which was created by my mentor [Evelyn](https://github.com/outofambit).
+
+## Acknowledgements
+I am glad to be able to spend my summer contributing to p5.js. I would like to thank my mentor [Evelyn Masso](https://github.com/outofambit), for her support throughout the summer and for making sure that I had enough opportunities to grow during the project. I would also like to thank other members of the Processing Foundation for this opportunity and their help in making this project successful.