Merge pull request #691 from skywinder/patch-1

Add zcash cryptocurrency

README.md

@@ -154,6 +154,7 @@ See also [Rust — Production](https://www.rust-lang.org/production)(organizatio
 * [rust-cardano](https://github.com/input-output-hk/rust-cardano) — Rust implementation of Cardano primitives, helpers, and related applications
 * [Substrate](https://github.com/paritytech/substrate) — Generic modular blockchain template written in Rust
 * [wagu](https://crates.io/crates/wagu) — Generate a wallet for any cryptocurrency [<img src="https://api.travis-ci.com/ArgusObserver/wagu.svg?branch=master">](https://api.travis-ci.com/ArgusObserver/wagu.svg?branch=master)
+* [zcash](https://github.com/zcash/zcash) — Zcash is an implementation of the "Zerocash" protocol.
 * [Holochain](https://github.com/holochain/holochain-rust) — Scalable P2P alternative to blockchain for all those distributed apps you always wanted to build [![Build Status](https://travis-ci.com/holochain/holochain-rust.svg?branch=master)](https://travis-ci.com/holochain/holochain-rust)
 
 ### Database
@@ -795,7 +796,9 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
 * [conradkdotcom/rooster](https://github.com/conradkdotcom/rooster) [[rooster](https://crates.io/crates/rooster)] — Simple password manager to use in your terminal
 * [sfackler/rust-native-tls](https://github.com/sfackler/rust-native-tls) — Bindings for native TLS libraries
 * [sfackler/rust-openssl](https://github.com/sfackler/rust-openssl) — [OpenSSL](https://www.openssl.org/) bindings [<img src="https://api.travis-ci.org/sfackler/rust-openssl.svg?branch=master">](https://travis-ci.org/sfackler/rust-openssl)
-* [kornelski/rust-security-framework](https://github.com/kornelski/rust-security-framework) — Bindings for Security Framework (OSX native crypto)
+* [kornelski/rust-security-framework](https://github.com/kornelski/rust-security-framework) — Bindings for Security Framework (OSX native 
+
+)
 * [steffengy/schannel-rs](https://github.com/steffengy/schannel-rs) — Bindings for Schannel (Windows native TLS)
 * [zebradil/rustotpony](https://github.com/zebradil/rustotpony) — CLI manager of one-time password generators aka Google Authenticator (TOTP)