task: add devcontainer support for another possible workflow

starter-template/.devcontainer/devcontainer.json

@@ -0,0 +1,20 @@
+{
+  "name": "Oddments Catalog",
+  "image": "mcr.microsoft.com/devcontainers/javascript-node:1-22-bookworm",
+  "postCreateCommand": "npm install",
+  "forwardPorts": [5173],
+  "portsAttributes": {
+    "5173": {
+      "label": "Oddments dev server",
+      "onAutoForward": "notify"
+    }
+  },
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "svelte.svelte-vscode",
+        "esbenp.prettier-vscode"
+      ]
+    }
+  }
+}

starter-template/README.md

@@ -19,6 +19,21 @@ npm install
 npm run dev       # preview at http://localhost:5173
 ```
 
+### Codespaces or Dev Containers
+
+This template includes a `.devcontainer/` setup for GitHub Codespaces and local Docker-based development. Open the repo in Codespaces, or use VS Code's **Dev Containers: Reopen in Container** command, then run:
+
+```bash
+npm run dev
+```
+
+CLI commands work there too:
+
+```bash
+npx oddments import template.csv --dry-run
+npx oddments covers --dry-run
+```
+
 ## Adding content
 
 Each exhibit is a Markdown file with YAML frontmatter in `oddments/`.
@@ -152,7 +167,7 @@ export default {
 
 `imageOrientation` controls how cover images are displayed on cards and exhibit pages. Set it to match the shape of your cover images:
 
-| Value                 | Card image box | Exhibit page layout      |
+| Value                 | Card image box | Exhibit page layout       |
 | --------------------- | -------------- | ------------------------- |
 | `landscape` (default) | 3:2 (wide)     | Image stacked above text  |
 | `portrait`            | 2:3 (tall)     | Image left, text right    |