feat: Add notes regarding development container setup and vscode tasks

The devcontainer simplifies local setup using Docker or GitHub Codespaces.
It includes vscode tasks for running Jekyll and serving the site efficiently.

This changes adds relevant informations regarding the usage to the README.

README.md

@@ -64,6 +64,19 @@ Take the opportunity to edit the `Description` and `Website` of the repository.
 
 You probably want to rewrite the content of this `README.md` file.
 
+### Development Container
+
+This repository has a [devcontainer](https://code.visualstudio.com/docs/devcontainers/create-dev-container) defined for use with Visual Studio Code.  
+Upon opening the repository in Visual Studio Code, you will be prompted to reopen the repository in the devcontainer.  
+
+This will install all the necessary dependencies to run Jekyll locally without having to install anything on your local machine.
+
+> **Note:** You need to have [Docker](https://www.docker.com/products/docker-desktop) installed on your local machine to use the devcontainer.
+
+You can also use [GitHub Codespaces](https://docs.github.com/codespaces), which is a cloud-based development environment for your repository. The devcontainer configuration will also make sure that Jekyll is installed and running in the Codespace.
+
+It also has vscode tasks defined for running Jekyll locally and serving the site.
+
 ### Configuration
 
 Edit the `_config.yml` file: