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@@ -11,6 +11,11 @@ be referenced outside. Lifetimes mean that calling code of e.g. functions
can be checked to make sure their arguments are valid. Lifetimes are
restrictive of their callers.
+If you'd like to learn more about lifetime annotations, the
+[lifetimekata](https://tfpk.github.io/lifetimekata/) project
+has a similar style of exercises to Rustlings, but is all about
+learning to write lifetime annotations.
+
## Further information
- [Validating References with Lifetimes](https://doc.rust-lang.org/book/ch10-03-lifetime-syntax.html)