Add Docker configuration. 🐳

Dockerfile

@@ -0,0 +1,9 @@
+# Get the latest version of Playwright
+FROM mcr.microsoft.com/playwright:v1.46.0-jammy
+
+RUN mkdir /tests
+COPY . /tests
+WORKDIR /tests
+
+RUN npm install
+RUN npx @playwright/test install

README.md

@@ -96,6 +96,38 @@ npx playwright test --project "Playground UI Tests"
 npx playwright test --project "Ludic UI Tests"
 ```
 
+## 🐳 Docker
+
+To run tests in docker containers, install docker and use the followings commands to compose the docker image from the docker file.
+
+```shell
+docker build -t {image name} .
+```
+
+To create the container and launch it for use:
+
+```shell
+docker run -it -d {image name}
+```
+
+Check that the container is up and running and copy the container id.
+
+```shell
+docker ps -a
+```
+
+Now you can login in to the running container:
+
+```shell
+docker exec -it {container id} bash
+```
+
+Finally, just run the commands as per normal but in the docker bash shell:
+
+```shell
+npx playwright test
+```
+
 ## 📜 Rationale
 
 As an existential note, this project is not intended to [immanentize the eschaton](https://en.wikipedia.org/wiki/Immanentize_the_eschaton). (Just in case anyone was worried.)