diff --git a/.devcontainer/docs/devcontainer-metadata.json b/.devcontainer/docs/devcontainer-metadata.json
index 57b9e71c..1a54ce73 100644
--- a/.devcontainer/docs/devcontainer-metadata.json
+++ b/.devcontainer/docs/devcontainer-metadata.json
@@ -1,7 +1,10 @@
 {
   "customizations": {
     "vscode": {
-      "extensions": ["jebbs.plantuml@2.18.1", "sbdl.sbdl@1.8.18"]
+      "extensions": [
+        "jebbs.plantuml@2.18.1",
+        "sbdl.sbdl@1.8.18"
+      ]
     }
   }
 }