Add Vocdoni to Featured Projects

**Describe your project**
https://vocdoni.io

https://github.com/search?q=org%3Avocdoni+zk-kit&type=code


**Other info**

- Name
- Tagline
- Icon
- Languages of ZK-Kit packages (JavaScript, Circom, Solidity, Noir, Rust)

**Links**

- Website
- Github
- Socials
