Add cw20-atomic-swap to README

README.md

@@ -14,6 +14,7 @@
 | ----------------------- | ----------------------------------------------------------------------------------------------------------------------------  | -------------------------------------------------------------------------|
 | cw1-subkeys             | [![cw1-subkeys on crates.io](https://img.shields.io/crates/v/cw1-subkeys.svg)](https://crates.io/crates/cw1-subkeys)          | [![Docs](https://docs.rs/cw1-subkeys/badge.svg)](https://docs.rs/cw1-subkeys)    |
 | cw1-whitelist           | [![cw1-whitelist on crates.io](https://img.shields.io/crates/v/cw1-whitelist.svg)](https://crates.io/crates/cw1-whitelist)          | [![Docs](https://docs.rs/cw1-whitelist/badge.svg)](https://docs.rs/cw1-whitelist)    |
+| cw20-atomic-swap                | [![cw20-atomic-swap on crates.io](https://img.shields.io/crates/v/cw20-atomic-swap.svg)](https://crates.io/crates/cw20-atomic-swap)          | [![Docs](https://docs.rs/cw20-atomic-swap/badge.svg)](https://docs.rs/cw20-atomic-swap)    |
 | cw20-base                | [![cw20-base on crates.io](https://img.shields.io/crates/v/cw20-base.svg)](https://crates.io/crates/cw20-base)          | [![Docs](https://docs.rs/cw20-base/badge.svg)](https://docs.rs/cw20-base)    |
 | cw20-escrow             | [![cw20-escrow on crates.io](https://img.shields.io/crates/v/cw20-escrow.svg)](https://crates.io/crates/cw20-escrow)          | [![Docs](https://docs.rs/cw20-escrow/badge.svg)](https://docs.rs/cw20-escrow)    |
 | cw20-staking             | [![cw20-staking on crates.io](https://img.shields.io/crates/v/cw20-staking.svg)](https://crates.io/crates/cw20-staking)          | [![Docs](https://docs.rs/cw20-staking/badge.svg)](https://docs.rs/cw20-staking)    |