UPGRADING-5.0.md

Configuration changes:

For symfony >= 4.0 (with a 4.0 directory layout):

config/packages/dtc_grid.yaml:

dtc_grid:
    purl: 'https://cdnjs.cloudflare.com/ajax/libs/purl/2.3.1/purl.min.js'
    jquery:
        url: 'https://code.jquery.com/jquery-3.3.1.min.js'
        integrity: sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8=
        crossorigin: anonymous
    datatables:
        css:
            - 'https://cdn.datatables.net/1.10.19/css/dataTables.bootstrap4.min.css'
        js:
            - 'https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js'
            - 'https://cdn.datatables.net/1.10.19/js/dataTables.bootstrap4.min.js'
    theme:
        css:
            - 'https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css'
            - 'https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/css/bootstrap.min.css'
        js:
            - 'https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js'
            - 'https://stackpath.bootstrapcdn.com/bootstrap/4.1.2/js/bootstrap.min.js'
    page_div_style: 'margin: 10px'