Update wg-checkpoint-restore/charter.md

Co-authored-by: Sergey Kanzhelev <S.Kanzhelev@live.com>

Author: adrianreber

wg-checkpoint-restore/charter.md

@@ -23,7 +23,7 @@ accelerated application startup times.
   and APIs.
 - Provide guidance for developers on checkpoint-friendly app design and
   recommendations for operators on feature management.
-- Work closely with relevant upstream projects (CRI-O, containerd, CRIU)
+- Work closely with relevant upstream projects (CRI-O, containerd, CRIU, gVisor)
   for alignment and integration.
 - Revisit the existing implementations to find and remedy possible inefficiencies.
   One example is the existing checkpoint archive format which has already been