add presentation

.devcontainer/devcontainer.json

@@ -6,12 +6,24 @@
 	"image": "mcr.microsoft.com/devcontainers/base:jammy",
 	"features": {
 		"ghcr.io/devcontainers/features/docker-in-docker:2": {},
-		"ghcr.io/devcontainers-contrib/features/doctoolchain-sdkman:2": {}
+		"ghcr.io/devcontainers-contrib/features/doctoolchain-sdkman:2": {
+			"version" : "3.1.2",
+			"jdkVersion": "17"
+		},
+		"ghcr.io/devcontainers-contrib/features/http-server:1": {}
 	},
+	"postCreateCommand": "curl -Lo dtcw https://doctoolchain.org/dtcw && chmod +x dtcw",
 	"remoteUser": "vscode",
 	"workspaceMount": "source=${localWorkspaceFolder},target=/workspace,type=bind,Z",
 	"workspaceFolder": "/workspace",
 	
 	"runArgs": ["--userns=keep-id"],
-	"containerUser": "vscode"
+	"containerUser": "vscode",
+	"customizations": {
+		"vscode": {
+			"extensions": [
+				"asciidoctor.asciidoctor-vscode"
+			]
+		}
+	}
 }