Add more resources suggested by Ralf

docs/resources.md

@@ -8,10 +8,18 @@ try to keep an up-to-date list here:
 - [Sam Gross's EuroPython talk](https://www.youtube.com/watch?v=9OOJcTp8dqE)
 - [PEP 703 design document](https://docs.google.com/document/d/18CXhDb1ygxg-YXNBJNzfzZsDFosB5e6BfnXLlejd9l0/edit?usp=sharing)
 - [C API Extension Support for Free Threading HOWTO on docs.python.org](https://docs.python.org/3.13/howto/free-threading-extensions.html)
+- [`ft_utils` documentation](https://facebookincubator.github.io/ft_utils/)
+- [PEP 703 initial discussion thread](https://discuss.python.org/t/22606), as
+    well as the [follow-up discussion thread](https://discuss.python.org/t/26503)
+- [PEP 703 acceptance announcement](https://discuss.python.org/t/37075)
+- [Quansight Labs blog post about work on free-threading](https://labs.quansight.org/blog/free-threaded-python-rollout)
+- [Simon Willison's post about trying out free-threaded Python on macOS](https://til.simonwillison.net/python/trying-free-threaded-python)
 
 There's also a lot of useful resources on CPython internals, that are not
 specific to the free-threaded build:
 
 - [CPython internal docs](https://github.com/python/cpython/tree/main/InternalDocs)
 - [Dated tutorial on writing C extension modules](https://llllllllll.github.io/c-extension-tutorial/)
 - [Python behind the scenes series](https://tenthousandmeters.com/tag/python-behind-the-scenes/)
+- [Łukasz Langa's PyCon Thailand talk on the Python 3.13 release](https://www.youtube.com/watch?v=uL_kmagVKFQ)
+- [Anthony Shaw's PyCon US talk on free-threading and other parallelism concepts](https://www.youtube.com/watch?v=Mp5wKOL4L2Q)