Update example comments

README.md

@@ -207,7 +207,7 @@ We plan to add many GPU-accelerated, concurrent data structures to `cuCollection
 - [Host-bulk APIs](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/host_bulk_example.cu) (see [live example in godbolt](https://godbolt.org/z/fczxbM1h6))
 - [Device-ref APIs for individual operations](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/device_ref_example.cu) (see [live example in godbolt](https://godbolt.org/z/zcnGqfdMW))
 - [One single storage for multiple sets](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/device_subsets_example.cu) (see [live example in godbolt](https://godbolt.org/z/P9s4fKscj))
-- [Using shared memory as storage](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/shared_memory_example.cu) (see [live example in godbolt](https://godbolt.org/z/sTsq7fbjv))
+- [Using shared memory as storage](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/shared_memory_example.cu) (see [live example in godbolt](https://godbolt.org/z/4dq58efc8))
 - [Using set as mapping table to handle large keys or indeterministic sentinels](https://github.com/NVIDIA/cuCollections/blob/dev/examples/static_set/mapping_table_example.cu) (see [live example in godbolt](https://godbolt.org/z/E1e3j86E4))
 
 ### `static_map`

examples/static_set/shared_memory_example.cu

@@ -60,6 +60,7 @@ __global__ void shmem_set_kernel(typename SetRef::extent_type window_extent,
   // Next, we want to check if the keys can be found again using the `contains` function. We create
   // a new non-owning object based on the `insert_ref` that supports `contains` but no longer
   // supports `insert`.
+  // CAVEAT: concurrent use of `insert_ref` and `contains_ref` is undefined behavior.
   auto const contains_ref = insert_ref.with_operators(cuco::contains);
 
   // Check if all keys can be found