chore: add readme in root folder of deployment use case + fix cifar (… #651

	# Sync repos
	name: Sync repos

	on:
	push:
	branches:
	- 'main'
	workflow_dispatch:

	jobs:
	sync-repo:
	if: ${{ github.repository == 'zama-ai/concrete-ml' }}
	runs-on: ubuntu-latest
	steps:
	# Initial action can be found here: https://github.com/wei/git-sync
	# The issue is that it does not handle new LFS files when pushing, only the ones that are
	# already existing ones. We therefore had to fork it and add the feature manually. In
	# particular, trying to rewrite the action directly here as a step does not work because of
	# some authorization issues and thus requires to further investigate on the right
	# configuration to use. This is not needed with external actions like this one as they
	# are specifically allowed in the repository's settings
	- name: git-sync
	uses: RomanBredehoft/git-sync@4cb5df92a32e6b0881903ebb4e7b2e7d5643891b
	with:
	source_repo: "zama-ai/concrete-ml"
	source_branch: "main"
	destination_repo: "https://${{ secrets.BOT_USERNAME }}:${{ secrets.CONCRETE_ACTIONS_TOKEN }}@github.com/${{ secrets.SYNC_DEST_REPO }}.git"
	destination_branch: "main"
	push_lfs: true

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