Update Phylo2VectR.md

Author: maxbiostat

ProgrammingProjects/Phylo2VectR.md

@@ -2,4 +2,6 @@
 
 You'll port [this](https://github.com/neclow/phylo2vec) Python implementation into R. Specifically, you'll design things to work fast and nice with `phylo` type (**ape**) objects.
 
+[Here](https://github.com/bacpop/trees_rs/blob/main/src/phylo2vec.cpp) is an implementation in C++ which could be leveraged with Rcpp, probably. 
+
 The paper is [here](https://arxiv.org/abs/2304.12693) if you need a technical resource.