Added Philipp's talk at BobConf 2022

Author: coot

README.md

@@ -45,6 +45,10 @@ a complex, highly-concurrent, distributed system
 * write network simulations, to verify a complex networking stack;
 * write disk IO simulations, to verify a database implementation.
 
+### Supporting material
+
+* [Philipp Kant (@kantp) at Bobconf 2022][bob-conf]
+
 
 ## Packages
 
@@ -101,3 +105,4 @@ of issues opened in the `ouroboros-network` repository:
 [io-classes-issues]: https://github.com/input-output-hk/ouroboros-network/issues?q=is%3Aopen+is%3Aissue+label%3Aio-classes
 [contra-tracer]: https://hackage.haskell.org/package/contra-tracer
 [io-sim-por]: https://github.com/input-output-hk/io-sim/blob/main/io-sim/how-to-use-IOSimPOR.md
+[bob-conf]: https://www.youtube.com/watch?v=e74TE0b4xEM&t=13662s