Update devcontainer.json

Author: Chuxel

containers/docker-in-docker/.devcontainer/devcontainer.json

@@ -1,8 +1,8 @@
 {
-    "name": "Docker-in-Docker",
+    "name": "Docker in Docker",
     "dockerFile": ".devcontainer/Dockerfile",
     "extensions": [
         "peterjausovec.vscode-docker"
     ],
     "runArgs": ["-v","/var/run/docker.sock:/var/run/docker.sock"]
-}
+}