Update index.html

Author: chemlambda

index.html

@@ -29,6 +29,7 @@ <h1> Landing page for all chemlambda projects <br><br></h1>
 <div> Technical notes:
  <ul>
   <li> <a href="https://mbuliga.github.io/quinegraphs/quine-graph-doc.pdf">Artificial chemistry experiments with chemlambda, lambda calculus, interaction combinators</a> or <a href="https://arxiv.org/abs/2003.14332">arXiv:2003.14332 [cs.AI]</a></li>
+  <li> <a href="https://mbuliga.github.io/quinegraphs/ic-vs-chem.html#icvschem">Artificial life properties of directed interaction combinators vs. chemlambda</a> or <a href="https://arxiv.org/abs/2005.06060">arXiv:2005.06060 [cs.AI]</a></li>
   <li> <a href="https://mbuliga.github.io/quinegraphs/history-of-chemlambda.html">Graph rewrites, from emergent algebras to chemlambda</a> or <a href="https://mbuliga.github.io/quinegraphs/tex/history.pdf">(pdf)</a> or <a href="https://doi.org/10.6084/m9.figshare.12646208.v2">(figshare)</a></li>
   <li><a href="https://mbuliga.github.io/quinegraphs/puresee.html">(working draft) Pure See</a></li>
  </ul>