add examples section

README.md

@@ -66,7 +66,17 @@ CPU cores.
 
 A LaTeX version of the core logic definitions and some derived forms is
 available in [docs/iris.tex](docs/iris.tex).  A compiled PDF version of this
-document is [available online](http://plv.mpi-sws.org/iris/appendix-3.0.pdf).
+document is [available online](http://plv.mpi-sws.org/iris/appendix-3.1.pdf).
+
+## Examples
+
+The following is a (probably incomplete) list of case studies that use Iris, and
+that should be compatible with this version:
+
+* [Iris Examples](https://gitlab.mpi-sws.org/FP/iris-examples) is where we
+  collect miscellaneous case studies that do not have their own repository.
+* [LambdaRust](https://gitlab.mpi-sws.org/FP/LambdaRust-coq/) is a Coq
+  formalization of the core Rust type system.
 
 ## For Developers: How to update the std++ dependency