Docs: add missing comma in native font stack code source in Content > Reboot (#39617)

diff --git a/site/content/docs/5.3/content/reboot.md b/site/content/docs/5.3/content/reboot.md
index ef2bd13bcfbdafc4ddf9c3a5820955a7ff77d2b6..1400e8c55068dde71e3136143d859b5a7646929d 100644 (file)
--- a/site/content/docs/5.3/content/reboot.md
+++ b/site/content/docs/5.3/content/reboot.md
@@ -64,7 +64,7 @@ $font-family-sans-serif:
   // Android
   Roboto,
   // older macOS and iOS
-  "Helvetica Neue"
+  "Helvetica Neue",
   // Linux
   "Noto Sans",
   "Liberation Sans",