add llama2.c-android to readme

Author: Manuel030

README.md

@@ -189,6 +189,7 @@ If your candidate PRs have elements of these it doesn't mean they won't get merg
 
 - [llama2.rs](https://github.com/gaxler/llama2.rs) by @gaxler: a Rust port of this project
 - [go-llama2](https://github.com/tmc/go-llama2) by @tmc: a Go port of this project
+- [llama2.c-android](https://github.com/Manuel030/llama2.c-android): by @Manuel030: adds Android binaries of this project
 
 ## unsorted todos