Mafalda SFU webpage

To automatically add new docs updates of projects, add private key to the source repository and config the cpina/github-action-push-to-another-repository action. As a reference, this is the deploy action for ROPE-client:

name: build documentation and publish

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  publish:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: cpina/github-action-push-to-another-repository@v1.5.1
        env:
          SSH_DEPLOY_KEY: ${{ secrets.SSH_DEPLOY_KEY }}
        with:
          destination-github-username: Mafalda-SFU
          destination-repository-name: Mafalda-SFU.github.io
          source-directory: docs
          target-directory: docs/ROPE-client
          user-name: piranna