Add Bookmark Archiver (#1513)

* add bookmark-archiver

* add demo, source code, language, license

* Add full stop

README.md

@@ -133,6 +133,7 @@ Some [Content Management System](#content-management-systems-cms) solutions also
 - [Access to Memory (AtoM)](https://www.accesstomemory.org/) - Web-based, open source application for standards-based archival description and access in a multilingual, multi-repository environment. ([Demo](https://demo.accesstomemory.org/), [Source Code](https://github.com/artefactual/atom)) `PHP` `AGPL-3.0-only`
 - [Archivematica](https://www.archivematica.org/) - Mature digital preservation system designed to maintain standards-based, long-term access to collections of digital objects. ([Demo](http://sandbox.archivematica.org/administration/accounts/login/), [Source Code](https://github.com/artefactual/archivematica)) `Python` `AGPL-3.0-only`
 - [ArchivesSpace](https://archivesspace.org/) - Archives information management application for managing and providing Web access to archives, manuscripts and digital objects. ([Demo](https://archivesspace.org/application/demo/), [Source Code](https://github.com/archivesspace/archivesspace)) `Ruby` `ECL-2.0`
+- [Bookmark Archiver](https://pirate.github.io/bookmark-archiver) - Self-hosted "wayback machine" that creates html & screenshot archives of sites from your bookmarks, browsing history, RSS feeds, or other sources. ([Demo](https://archive.sweeting.me), [Source Code](https://github.com/pirate/bookmark-archiver)) `MIT` `Python`
 - [Collective Access: Providence](http://collectiveaccess.org/) - Highly configurable Web-based framework for management, description, and discovery of digital and physical collections supporting a variety of metadata standards, data types, and media formats. ([Source Code](https://github.com/collectiveaccess/providence)) `PHP` `GPL-3.0-only`
 
 ## Automation