Update README.md

Author: OmegaTymbJIep

README.md

@@ -126,4 +126,7 @@ dependency to build the `rapidsnark-sys` crate.
 ```bash
 sudo apt update sudo apt upgrate
 sudo apt install libomp-dev
-```
+```
+
+### Acknowledgments
+We use a [circom ecdsa](https://github.com/0xPARC/circom-ecdsa) implementation from 0xPARC.