chore: Add OpenAIFuntionCaller to catalogue (#18)

README.md

@@ -39,8 +39,10 @@ The latest version of the package contains the following experiments:
 | Name                     | Type                    | Experiment end date |
 | ------------------------ | ----------------------- | ------------------- |
 | [`EvaluationHarness`][1] | Evaluation orchestrator | August 2024         |
+| [`OpenAIFunctionCaller`][2] | Function Calling Component | August 2024         |
 
 [1]: https://github.com/deepset-ai/haystack-experimental/tree/main/haystack_experimental/evaluation/harness
+[2]: https://github.com/deepset-ai/haystack-experimental/tree/main/haystack_experimental/components/tools/openai
 
 ## Usage
 
@@ -112,4 +114,4 @@ class Pipeline(HaystackPipeline):
 
 ## Contributing
 
-Direct contributions to `haystack-experimental` are not expected, but Haystack maintainers might ask contributors to move pull requests that target the [core repository](https://github.com/deepset-ai/haystack) to this repository.
+Direct contributions to `haystack-experimental` are not expected, but Haystack maintainers might ask contributors to move pull requests that target the [core repository](https://github.com/deepset-ai/haystack) to this repository.