message: Change stream example 4
diff: @@ -376,6 +376,24 @@ TEST_CASE("Documentation Examples", "[min36]") {
  }
  // End Changestream Example 3
  }
  +
  + SECTION("Example 4") {
  + // Create a pipeline with
  + // [{"$match": {"$or": [{"fullDocument.username": "alice"}, {"operationType": "delete"}]}}]
  +
  + // Start Changestream Example 4
  + mongocxx::pipeline cs_pipeline;
  + cs_pipeline.match(
  + make_document(kvp("$or",
  + make_array(make_document(kvp("fullDocument.username", "alice")),
  + make_document(kvp("operationType", "delete"))))));
  +
  + change_stream stream = inventory.watch(cs_pipeline);
  + for (auto& event : stream) {
  + std::cout << bsoncxx::to_json(event) << std::endl;
  + }
  + // End Changestream Example 4
  + }
  }
  TEST_CASE("Watch 2 collections", "[min36]") {
  