git commit -m 'Issue #2522716 by davidhernandez, YesCT: Update mentoring...

git commit -m 'Issue #2522716 by davidhernandez, YesCT: Update mentoring description in MAINTAINERS.txt and add current maintainers alimac, heddn, valthebald, cilefen

core/MAINTAINERS.txt

@@ -511,13 +511,24 @@ Web services
 
 Provisional membership: None at this time.
 
-Core mentoring leads
+
+Core mentoring coordinators
 ---------------------
 
-The Drupal Core mentoring leads inspire, enable, and encourage new core
-contributors. They also work on the core tools, process, and community to make
-it easier for new contributors to get involved. The mentoring leads are:
+The Drupal Core mentors inspire, enable, and encourage new core contributors.
+See https://www.drupal.org/core-mentoring for more information about mentoring.
+
+Mentoring coordinators recruit and coach other mentors. They work on contributor
+tools, documentation, and processes to make it easier for new contributors to
+get involved. They organize communications and logistics, and actively
+participate in mentoring.
 
+- Lucas Hedding 'heddn' https://www.drupal.org/u/heddn
+- Valery Lourie 'valthebald' https://www.drupal.org/u/valthebald
+- Alina Mackenzie 'alimac' https://www.drupal.org/u/alimac
+- Chris McCaferty 'cilefen' https://www.drupal.org/u/cilefen
 - Jess Myrbo 'xjm' https://www.drupal.org/u/xjm
-- Cathy Theys 'YesCT' https://www.drupal.org/u/yesct
 - Andrea Soper 'ZenDoodles' https://www.drupal.org/u/zendoodles
+- Cathy Theys 'YesCT' https://www.drupal.org/u/yesct
+
+Provisional membership: None at this time.