readme

Author: Arvolear

README.md

@@ -13,7 +13,7 @@ The library consists of modules and utilities that are built with a help of [Ope
 - Versatile access control smart contracts (Merkle whitelists, RBAC)
 - Enhanced and simplified [**Diamond**](https://eips.ethereum.org/EIPS/eip-2535) pattern
 - Advanced data structures (**Vector**, **PriorityQueue**)
-- ZK-friendly [**Incremental Merkle Tree**](https://github.com/runtimeverification/deposit-contract-verification/blob/master/deposit-contract-verification.pdf) implementation
+- ZK-friendly [**Sparse Merkle Tree**](https://docs.iden3.io/publications/pdfs/Merkle-Tree.pdf) and [**Incremental Merkle Tree**](https://github.com/runtimeverification/deposit-contract-verification/blob/master/deposit-contract-verification.pdf) implementations
 - Flexible finance primitives (**Staking**, **Vesting**)
 - Easy UniswapV2 and UniswapV3 oracles
 - Utilities to ease work with ERC20 decimals, arrays, sets and ZK proofs