Link authors to GitHub IDs

Author: sjanuary

AUTHORS.md

@@ -1,13 +1,12 @@
-
 Authors ordered by first contribution:
 
- - Toby Corbin ([email protected].com)  
- - Sian January ([email protected].com)
- - Matt Colegate ([email protected].com)
- - Julie Stalley ([email protected].com) 
+ - Toby Corbin (https://github.com/tobespc)  
+ - Sian January (https://github.com/sjanuary)
+ - Matt Colegate (https://github.com/mattcolegate)
+ - Julie Stalley (https://github.com/stalleyj) 
  - Sam Roberts (https://github.com/sam-github)
  - Ryan Graham (https://github.com/rmg)
  - William Taylor (https://github.com/william-taylor) 
- - Howard Hellyer ([email protected].com) 
+ - Howard Hellyer (https://github.com/hhellyer) 
  - Julien Arnold (https://github.com/JulienArnold)