vscode設定追加しとく

.devcontainer/devcontainer.json

@@ -5,7 +5,7 @@
 	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
 	"dockerComposeFile": "docker-compose.yml",
 	"service": "devcontainer",
-	"workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}",
+	"workspaceFolder": "/workspaces/${localWorkspaceFolderBasename}"
 	// Features to add to the dev container. More info: https://containers.dev/features.
 	// "features": {},
 	// Use 'forwardPorts' to make a list of ports inside the container available locally.
@@ -16,4 +16,12 @@
 	// "customizations": {},
 	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
 	// "remoteUser": "root"
+	,
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"github.vscode-pull-request-github"
+			]
+		}
+	}
 }