Added Alexis Praga to the board (reviewer)

Author: rougier

04-board.md

@@ -766,3 +766,7 @@ ORCID: [0000-0002-8225-7517](https://orcid.org/0000-0002-8225-7517)
 * [Molly Zhang](https://github.com/MollyZhang)  
   Machine Learning, Natural Language Processing, Cancer Genomics - Python, Java  
   ORCID: [0000-0002-2398-8854](https://orcid.org/0000-0002-2398-8854
+
+* [Alexis Praga](https://github.com/apraga)  
+  High Performance Computing, Germline genomics, Applied Mathematics - Julia, Python, Fortran, Haskell, Nix, C++  
+  ORCID: [0000-0002-4540-8371](https://orcid.org/0000-0002-4540-8371)