Merge pull request #1573 from Kickball/Add_Booking

Add Booking Section

README.md

@@ -68,6 +68,7 @@ See [Contributing](.github/CONTRIBUTING.md).
   - [Personal Dashboards](#personal-dashboards)
   - [Photo and Video Galleries](#photo-and-video-galleries)
   - [Polls and Events](#polls-and-events)
+    - [Booking and Scheduling](#booking-and-scheduling)
   - [Proxy](#proxy)
   - [Read it Later Lists](#read-it-later-lists)
   - [Resource Planning](#resource-planning)
@@ -207,6 +208,7 @@ 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`
 
+
 ## Bookmarks and Link Sharing
 
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@@ -1104,6 +1106,12 @@ See https://github.com/n1trux/awesome-sysadmin#metric--metric-collection
 - [Nuages](https://nuages.domainepublic.net/) - Collaborative meeting poll system, similar to doodle or rdvz. ([Source Code](http://git.domainepublic.net/?p=nuages.git;a=tree)) `GPL-3.0` `Python`
 - [PHPBack](http://www.phpback.org) - The open source feedback system. ([Demo](http://www.phpback.org/demo/), [Source Code](https://github.com/ivandiazwm/phpback/)) `GPL-3.0` `PHP`
 
+### Booking and Scheduling
+
+- [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. ([Demo](http://easyappointments.org/demo/), [Source Code](https://github.com/alextselegidis/easyappointments)) `GPL-3.0` `PHP`
+
 ## Proxy
 
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