update authors

Author: nshaffer

FortranCon2021-stdlib/README.md

@@ -10,11 +10,12 @@
 [Sebastian Ehlert](https://github.com/awvwgk) (University of Bonn),
 [Gareth Davies](https://github.com/gareth-nx),
 [Aman Godara](https://github.com/Aman-Godara),
-[Jing ???](https://github.com/Jim-215-Fisher),
-[Chetan Karwa](https://github.com/chetankarwa),
+[Michael Hirsch](https://github.com/scivision) (Scivision),
+[Jing](https://github.com/Jim-215-Fisher),
+[Chetan Karwa](https://github.com/chetankarwa) (Sardar Vallabhbhai NIT Surat),
 [Arjen Markus](https://github.com/arjenmarkus),
-[Ivan Pribec](https://github.com/ivan-pi), (Technical University of Munich),
-[Harris Snyder](https://github.com/hsnyder), 
+[Ivan Pribec](https://github.com/ivan-pi) (Technical University of Munich),
+[Harris Snyder](https://github.com/hsnyder) (Structura Biotechnology, Inc.), 
 [Jeremie Vandenplas](https://github.com/jvdp1) (Wageningen University & Research),
 [Evan Voyles](https://github.com/ejovo13) (Kalamazoo College),