Add `The Drowned City` cards #2362

	# This is a basic workflow to help you get started with Actions

	name: validate

	# Controls when the action will run.
	on:
	# Triggers the workflow on push or pull request events but only for the master branch
	push:
	branches: [ master ]
	pull_request:
	branches: [ master ]

	# Allows you to run this workflow manually from the Actions tab
	workflow_dispatch:

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "build"
	build:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	- name: Setup Python
	uses: actions/[email protected]
	- run: pip install jsonschema
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- uses: actions/checkout@v2

	# Runs a single command using the runners shell
	- name: Run validator
	run: python $GITHUB_WORKSPACE/validate.py

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