Update contact names

src/site/markdown/contact.md

@@ -46,7 +46,7 @@ please use the following address:
     31506 Toulouse Cedex 5
     FRANCE
 
-    phone: +33 5-61-17-66-66 (ask for Luc Maisonobe or Jonathan Guinet)
+    phone: +33 5-61-17-66-66 (ask for Jonathan Guinet or Guylaine Prat)
 
 
 [Top of the page](#top)

src/site/markdown/release-guide.md

@@ -4,7 +4,7 @@ This release guide is largely inspired from [Hipparchus Release
 Guide](https://www.hipparchus.org/release-guide.html) and [Orekit Release Guide](https://www.orekit.org/site-orekit-development/release-guide.html). It lists the steps that
 have been used in the past to release a new version of Rugged. When in doubt
 ask the experts: Sébastien Dinot <sebastien.dinot@csgroup.eu> for website questions
-and Luc Maisonobe <luc.maisonobe@csgroup.eu> for everything else.
+and Jonathan Guinet <jonathan.guinet@csgroup.eu> or Guylaine Prat <guylaine.prat@csgroup.eu> for everything else.
 
 ## Prerequisites