Install Password hashing library argon2 on Mac

Package Information:

Name: argon2
Use: Argon2 is a password-hashing function that summarizes the state of the art in the design of memory-hard functions and can be used to hash passwords for credential storage, key derivation, or other applications.
URL: https://github.com/P-H-C/phc-winner-argon2

Installation Steps:

1. Open Terminal using Spotlight search by pressing <command+space>. Type terminal and hit Enter key.
2. Now, run

   ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

3. Install argon2 using brew

   brew install argon2

argon2 is ready to use now!