Docs: Add "Unlearning Comparator" as a related resource for small-scale prototyping (#146)

Author: gnueaj

docs/links.md

@@ -77,6 +77,7 @@ Links to research papers and resources corresponding to implemented features in
 
 - [TOFU Benchmark (original)](https://github.com/locuslab/tofu)
 - [MUSE Benchmark (original)](https://github.com/swj0419/muse_bench)
+- [Unlearning Comparator](https://github.com/gnueaj/Machine-Unlearning-Comparator)
 - [Awesome LLM Unlearning](https://github.com/chrisliu298/awesome-llm-unlearning)
 - [Awesome Machine Unlearning](https://github.com/tamlhp/awesome-machine-unlearning)
 - [Awesome GenAI Unlearning](https://github.com/franciscoliu/Awesome-GenAI-Unlearning)