update maintainers list

Author: ejratl

README.rst

@@ -108,12 +108,12 @@ additional or substitute Maintainers, per `consensus agreements
 Current Maintainers of this TC Open Repository
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
--  `Jason Keirstead <mailto:[email protected]>`__; GitHub ID:
-   https://github.com/JasonKeirstead; WWW: `IBM <http://www.ibm.com/>`__
 -  `Emily Ratliff <mailto:[email protected]>`__; GitHub ID:
    https://github.com/ejratl; WWW: `IBM <http://www.ibm.com/>`__
--  `Duncan Sparrell <mailto:[email protected]>`__; GitHub ID:
-   https://github.com/sparrell; WWW: `sFractal <http://sfractal.com/>`__
+-  `Alexandre Dulaunoy <mailto:[email protected]>`__; GitHub ID:
+   https://github.com/adulau; WWW: `CIRCL <http://www.circl.lu/>`__
+-  `Christian Studer <mailto:[email protected]>`__; GitHub ID:
+   https://github.com/chrisr3d; WWW: `CIRCL <http://www.circl.lu/>`__
 
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