Web version of the Advanced User Guide (#3464)
Web version of the Advanced User Guide (#3464)

* advanced-user-guide

* Rename advanced-user-guide.html to summary-of-the-advanced-user-guide.html

* Create advanced-user-guide.html

* Update advanced-user-guide.html

* Delete summary-of-the-advanced-user-guide.html

* Update advanced-user-guide.html

* Formatted advanced user guide

Co-authored-by: VaiTon <a2d04098725d87e7402b79d1c842aec856a0dd57@gmail.com>
openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server,openfoodfacts/openfoodfacts-server