chore(MAINTAINERS): add organizations

Signed-off-by: Brooks Townsend <brooksmtownsend@gmail.com>

Author: brooksmtownsend

MAINTAINERS.md

@@ -6,15 +6,20 @@ The following individuals are responsible for reviewing code, managing issues, a
 
 Name: Joonas Bergius  
 GitHub: @joonas
+Organization: Cosmonic
 
 Name: Dan Norris  
 GitHub: @protochron
+Organization: Cosmonic
 
 Name: Taylor Thomas  
 GitHub: @thomastaylor312
+Organization: Cosmonic
 
 Name: Ahmed Tadde  
 GitHub: @ahmedtadde
+Organization: PreciseTarget
 
 Name: Brooks Townsend  
 GitHub: @brooksmtownsend
+Organization: Cosmonic