Adding first anniversary sprint

Author: datapythonista

_posts/2018-09-18-first-anniversary.md

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+---
+category: "london"
+title: "First anniversary sprint"
+level: "All"
+time: "18:00"
+rsvp_link: https://www.meetup.com/Python-Sprints/events/254585121/
+project:
+sponsor: cytora
+---
+
+The London Python sprints group started a year ago, and since then we
+organised more than 20 sprints. Contributing to projects such as pandas,
+dateutil, Tornado, or the python.org website.
+
+To celebrate our first anniversary, we'll have a sprint with the maintainers
+of several Python packages. Including [Andreas Mueller](https://amueller.github.io/),
+[scikit-learn](http://scikit-learn.org/stable/) core developer, and author of the book
+[Introduction to Machine Learning with Python](http://shop.oreilly.com/product/0636920030515.do).
+Who will visit us from NYC.
+
+Maintainers of other projects include:
+- Pablo Galindo, [Python](https://www.python.org/)
+- Nicholas H. Tollervey, [Mu](https://codewith.mu/)
+- Alan Justino da Silva, [Grumpy](https://github.com/google/grumpy)
+- Marc Garcia, [pandas](https://pandas.pydata.org/)
+
+If you maintain or contribute to an open source Python project, and want to mentor people
+during the sprint, please let us know (contact the meetup organisers).
+
+Remember to:
+
+- Bring your own laptop
+- Join the [Gitter channel](https://gitter.im/py-sprints/first-anniversary) of the sprint

_sponsors/cytora.md

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+---
+obj_id: cytora
+name: "Cytora"
+logo: static/images/sponsors/cytora.svg
+link: http://www.cythora.com/
+address: "9 Dallington Street, Clerkenwell, EC1V 0LN"
+lat: 51.524502
+lng: -0.100597
+---
+Cytora is an artificial intelligence company building a new way for commercial insurers to target, select and price risk.