[Docs] embed "Reliable Akka.NET Message Delivery with Akka.Delivery" video into docs (#6770)

* [Docs] embed "Reliable Akka.NET Message Delivery with Akka.Delivery" video

Embeds "[Reliable Akka.NET Message Delivery with Akka.Delivery](https://www.youtube.com/watch?v=X2PBsUOSXpk)" video into https://getakka.net/articles/actors/reliable-delivery.html

* disable markdown lint for embedded video

Author: Aaronontheweb

docs/articles/actors/reliable-delivery.md

@@ -5,6 +5,10 @@ title: Reliable Akka.NET Message Delivery with Akka.Delivery
 
 # Reliable Message Delivery with Akka.Delivery
 
+<!-- markdownlint-disable MD033 -->
+<iframe width="560" height="315" src="https://www.youtube.com/embed/X2PBsUOSXpk" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen></iframe>
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 By [default Akka.NET uses "at most once" message delivery between actors](xref:message-delivery-reliability) - this is sufficient for most purposes within Akka.NET, but there are instances where users may require strong delivery guarantees.
 
 This is where Akka.Delivery can be helpful - it provides a robust set of tools for ensuring message delivery over the network, across actor restarts, and even across process restarts.