md format and added Marcus

CONTRIBUTORS.md

@@ -1,44 +1,43 @@
 Many many many thanks to:
-* Icecold777 (@Icecold777)
-* amic81 (@amic81)
-* Ryan Siddle (@rsiddle)
-* Michael J. Mitchell (@mitchtech)
-* Omri (@omrilotan)
-* Matthew Harrison-Jones (@matthojo)
-* Moos (@moos)
-* Örjan Sjöholm (@orjan)
-* Abha Gupta (@abhagupta)
-* jpvincent (@jpvincent)
-* Jeroen Van den Berghe (@JeroenVdb)
-* Jordan Jethwa (@jjethwa)
-* Pascal Borreli (@pborreli)
-* Radu Micu (@radum)
-* shakey2k2 (@shakey2k2)
-* lbod (@lbod)
-* Lorenzo Urbini (@siteriaitaliana)
-* George Haddad (@george-haddad)
-* Ferdinand Holzer (@fholzer)
-
-3.X and earlier:
-* Tom Sutton (@tomsutton1984)
-* Roberto Maisl (@rob-m)
-* Guillaume Lederrey (@gehel)
-* Tobias Lidskog (@tobli)
-* Emil Breding (@emilb)
-* Peter Van Gils (@kab12)
-* Juga Paazmaya (@paazmaya)
+* [Markus Liljedahl](https://github.com/mliljedahl)
+* [Ferdinand Holzer](https://github.com/fholzer)
+* [George Haddad](https://github.com/george-haddad)
+* [Icecold777](https://github.com/Icecold777)
+* [amic81](https://github.com/amic81)
+* [Ryan Siddle](https://github.com/rsiddle)
+* [Michael J. Mitchell](https://github.com/mitchtech)
+* [Omri](https://github.com/omrilotan)
+* [Matthew Harrison-Jones](https://github.com/matthojo)
+* [Moos](https://github.com/moos)
+* [Örjan Sjöholm](https://github.com/orjan)
+* [Abha Gupta](https://github.com/abhagupta)
+* [jpvincent](https://github.com/jpvincent)
+* [Jeroen Van den Berghe](https://github.com/JeroenVdb)
+* [Jordan Jethwa](https://github.com/jjethwa)
+* [Pascal Borreli](https://github.com/pborreli)
+* [Radu Micu](https://github.com/radum)
+* [shakey2k2](https://github.com/shakey2k2)
+* [lbod](https://github.com/lbod)
+* [Lorenzo Urbini](https://github.com/siteriaitaliana)
+* [Tom Sutton](https://github.com/tomsutton1984)
+* [Roberto Maisl](https://github.com/rob-m)
+* [Guillaume Lederrey](https://github.com/gehel)
+* [Tobias Lidskog](https://github.com/tobli)
+* [Emil Breding](https://github.com/emilb)
+* [Peter Van Gils](https://github.com/kab12)
+* [Juga Paazmaya](https://github.com/paazmaya)
 * Ajay Jain
-* Andy Dawson (@AD7six)
-* Chris Southam (@ChrisSoutham)
-* JoongSeob Vito Kim (@dorajistyle)
-* Zack Tollman (@tollmanz)
-* Steffen Persch (@n3o77)
-* Matt Flower (@MattFlower)
-* Stefan Judis (@stefanjudis)
-* Peter Elmered (@pelmered)
-* Jeroen Van den Berghe (@JeroenVdb)
-* Eike (@EikeDawid)
-* Jesse Zoldak (@jzoldak)
-* Devrim Tufan (@tufandevrim)
-* Keith Cirkel (@keithamus)
-* Jonathan Lee (@beenanner)
+* [Andy Dawson](https://github.com/AD7six)
+* [Chris Southam](https://github.com/ChrisSoutham)
+* [JoongSeob Vito Kim](https://github.com/dorajistyle)
+* [Zack Tollman](https://github.com/tollmanz)
+* [Steffen Persch](https://github.com/n3o77)
+* [Matt Flower](https://github.com/MattFlower)
+* [Stefan Judis](https://github.com/stefanjudis)
+* [Peter Elmered](https://github.com/pelmered)
+* [Jeroen Van den Berghe](https://github.com/JeroenVdb)
+* [Eike](https://github.com/EikeDawid)
+* [Jesse Zoldak](https://github.com/jzoldak)
+* [Devrim Tufan](https://github.com/tufandevrim)
+* [Keith Cirkel](https://github.com/keithamus)
+* [Jonathan Lee](https://github.com/beenanner)