add link to rustybits zero to async video in resources section

Author: phycrax

docs/pages/overview.adoc

@@ -77,3 +77,7 @@ For more reading material on async Rust and Embassy:
 * link:https://tweedegolf.nl/en/blog/65/async-rust-vs-rtos-showdown[Comparsion of FreeRTOS and Embassy]
 * link:https://dev.to/apollolabsbin/series/20707[Tutorials]
 * link:https://blog.drogue.io/firmware-updates-part-1/[Firmware Updates with Embassy]
+
+Videos:
+
+* link:https://www.youtube.com/watch?v=wni5h5vIPhU[From Zero to Async in Embedded Rust]