Docs request: linking threadproxysharing

[jamesbraza]

From https://pyro5.readthedocs.io/en/latest/clientcode.html?highlight=threadproxysharing#proxy-sharing-between-threads:

See the threadproxysharing example for more details.

I realized to see this snippet, we have to:

1. Open the GitHub repo
2. Navigate to examples/threadproxysharing/client.py

Would you be willing to hyperlink this example file in the docs, for reader's convenience? 🤓

[irmen]

Could be convenient. There are many more references to examples so these have to be updated as well though, to be complete.

[jamesbraza]

Nice work!