add workflow #3

	name: Update gallery JSON file
	on:
	push:
	branches:
	- '*'
	paths:
	- repositories.json

	pull_request:
	branches:
	- '*'

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout
	uses: actions/checkout@v3

	- name: Set up Python 3.10
	uses: actions/setup-python@v3
	with:
	python-version: "3.10"

	- name: Install dependencies
	run: pip install -r requirements.txt

	- name: Run gallery_generator.py
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: python src/gallery_generator.py

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