celmech as a new project using sympy

[Samuel Hadden]

Hello, 

 I am a postdoc in astrophysics working on exoplanets and astrophysical dynamics. I wanted to mention a code I developed, celmech (https://celmech.readthedocs.io/), as a project using sympy, similar to others listed here: https://www.sympy.org/en/index.html. Thanks!

 - Sam