Add Dockerfile and update README.md for Docker support

* **Dockerfile**
  - Add a `Dockerfile` to set up a Node.js environment
  - Add instructions to copy `mkbsd.js` and install dependencies
  - Add a command to run `mkbsd.js`

* **README.md**
  - Add a section for running the downloads via Docker
  - Include instructions to build and run the Docker container

Dockerfile

@@ -0,0 +1,17 @@
+# Use the official Node.js image as the base image
+FROM node:14
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy the package.json and package-lock.json files to the working directory
+COPY package*.json ./
+
+# Install the dependencies
+RUN npm install
+
+# Copy the rest of the application code to the working directory
+COPY . .
+
+# Command to run the mkbsd.js script
+CMD ["node", "mkbsd.js"]

README.md

@@ -30,6 +30,20 @@ MKBSD comes in two variants! Node.js and Python.
 4. Wait a little.
 5. All wallpapers are now in a newly created `downloads` subfolder.
 
+### Running in Docker
+
+1. Ensure you have Docker installed.
+2. Build the Docker image:
+   ```sh
+   docker build -t mkbsd .
+   ```
+3. Run the Docker container:
+   ```sh
+   docker run --rm -v $(pwd)/downloads:/app/downloads mkbsd
+   ```
+4. Wait a little.
+5. All wallpapers are now in a newly created `downloads` subfolder.
+
 ## FAQ
 
 ### Q: What's the story behind this?