Add devcontainer

Author: gbraad

.devcontainer/Containerfile

@@ -0,0 +1,5 @@
+FROM ghcr.io/gbraad-redhat/hugo:0.127.0
+
+RUN dnf install -y git-core \
+    && dnf clean all \
+    && rm -rf /var/cache/yum

.devcontainer/devcontainer.json

@@ -0,0 +1,13 @@
+{
+    "name": "Hugo environment",
+    "build": {
+        "dockerfile": "Containerfile"
+    },
+
+    "customizations": {
+        "vscode": {
+            "extensions": [
+            ]
+        }
+    }
+}

README.md

@@ -17,3 +17,16 @@ $ cd blog
 $ git submodule update --init
 $ podman run --rm -v $PWD:/workspace ghcr.io/gbraad-redhat/hugo:0.127.0 --minify
 ```
+
+This will create a `./public/` folder that contains the output as published on GH Pages.
+
+
+### Devcontainer
+You can also use the devcontainer setup. This will start the generation container and allows you to use the `hugo` command line directlky from inside the editor.
+
+This can be started from CodeSpaces, VS Code or the CLI
+
+```
+$ npm install -g @devcontainers/cli
+$ devconatiner up
+```