linux/b*: add Korean translation (#14681)

pages.ko/linux/betterdiscordctl.md

@@ -0,0 +1,24 @@
+# betterdiscordctl
+
+> Linux에서 BetterDiscord 관리.
+> 더 많은 정보: <https://github.com/bb010g/betterdiscordctl#manual>.
+
+- Discord Stable에 BetterDiscord 설치:
+
+`sudo betterdiscordctl install`
+
+- Discord Canary에 BetterDiscord 설치:
+
+`sudo betterdiscordctl --d-flavors canary install`
+
+- Discord PTB에 BetterDiscord 설치:
+
+`sudo betterdiscordctl --d-flavors ptb install`
+
+- Flatpak으로 설치된 Discord에 BetterDiscord 설치:
+
+`sudo betterdiscordctl --d-install flatpak install`
+
+- Snap으로 설치된 Discord에 BetterDiscord 설치:
+
+`sudo betterdiscordctl --d-install snap install`