ARIA-404: Add links to the TOSCA theoretical overview by Tal Liron
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+TOSCA Theoretical Overview
+--------------------------
+
+The following two videos give a theoretical overview of the TOSCA specification. It is presented by one of ARIA's developers, Tal Liron. In this session, Tal talks about the [TOSCA Simple Profile in YAML](http://docs.oasis-open.org/tosca/TOSCA-Simple-Profile-YAML/v1.0/csprd02/TOSCA-Simple-Profile-YAML-v1.0-csprd02.html) and its implementation in ARIA.
+
+[Introduction to TOSCA - Part one](https://www.youtube.com/watch?v=aMkqLI6o-58)
+[Introduction to TOSCA - Part two](https://www.youtube.com/watch?v=6xGmpi--7-A)
+
+The slides are available [here](https://www.slideshare.net/cloudifysource/tosca-in-practice-with-aria).
+
Installation
------------
