Update authors.md (#262)

docs/documentation/authors.md

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 ## Authors
 
-MFC was first developed by the Colonius research group at Caltech.
-Now it is developed and maintained by the groups of Professors <a href="https://comp-physics.group">Spencer Bryngelson</a>, <a href="https://colonius.caltech.edu/">Tim Colonius</a>, and <a href="https://vivo.brown.edu/display/mrodri97">Mauro Rodriguez</a> (alphabetical).
-
-We try to maintain a list of current and past developers:
-
-+ S. Bryngelson 
-+ T. Colonius 
-+ V. Coralic 
-+ H. Le Berre
-+ K. Maeda 
-+ J. Meng 
-+ F. O'Meally
-+ A. Radhakrishnan 
-+ J. Rodolfo Chreim
-+ M. Rodriguez 
-+ K. Schmidmayer 
-+ J. Spratt 
-+ B. Wilfong    
+Contributors to MFC since 2019 can be [viewed here](https://github.com/MFlowCode/MFC/graphs/contributors).