Add Booking Sesction

Add Alfio, Booked, and Easy!Appointments

README.md

@@ -16,6 +16,7 @@ See [Contributing](.github/CONTRIBUTING.md).
   - [Automation](#automation)
   - [Blogging Platforms](#blogging-platforms)
   - [Bookmarks and Link Sharing](#bookmarks-and-link-sharing)
+  - [Booking and Scheduling](#booking-and-scheduling)
   - [Calendaring and Contacts Management](#calendaring-and-contacts-management)
   - [Communication systems](#communication-systems)
     - [Custom communication systems](#custom-communication-systems)
@@ -206,6 +207,14 @@ See also [Static Site Generators](#static-site-generators), [Content Management
 - [Solo](http://b3log.org/) - Blogging system written in Java, feel free to create your or your team own blog. ([Demo](http://88250.b3log.org/), [Source Code](https://github.com/b3log/solo)) `Apache-2.0` `Java`
 - [WordPress](https://wordpress.org/) - Create a beautiful website or blog. ([Source Code](https://github.com/WordPress/WordPress)) `GPL-2.0` `PHP`
 
+## Booking and Scheduling
+
+**[`^        back to top        ^`](#)**
+
+- [Alf.io](https://alf.io/) - The open source ticket reservation system. ([Demo](https://demo.alf.io/authentication), [Source Code](https://github.com/alfio-event/alf.io)) `GPL-3.0` `Java`
+- [Booked](https://www.bookedscheduler.com/) - A web-based calendar and resource scheduling system that allows administered management of reservations on any number of resources. ([Demo](https://demo.bookedscheduler.com/Web/), [Source Code](https://sourceforge.net/projects/phpscheduleit/)) `GPL-3.0` `PHP`
+- [Easy!Appointments](http://easyappointments.org/) - A highly customizable web application that allows your customers to book appointments with you via the web. ([Source Code](https://github.com/alextselegidis/easyappointments)) `GPL-3.0` `PHP`
+
 ## Bookmarks and Link Sharing
 
 **[`^        back to top        ^`](#)**