doc: add link to ticket tracker

Signed-off-by: Stephen Waits <steve@waits.net>

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "vivaldi-nc"
-version = "0.3.0"
+version = "0.3.1"
 edition = "2021"
 authors = ["Stephen Waits <steve@waits.net>"]
 description = "Vivaldi network coordinates with a simple interface."

README.md

@@ -173,7 +173,8 @@ find many more.
 
 ## Getting Help or Contributing
 
-To get help or discuss this crate, please use
+To get help or discuss this crate, [submit a
+ticket](https://todo.sr.ht/~swaits/vivaldi-nc) or post on
 [`vivaldi-nc-discuss@`](https://lists.sr.ht/~swaits/vivaldi-nc-discuss).
 
 Discussion related to development or patch submissions should go to