Added yarn installation instructions before app startup instructions under Setup section of README.md to benefit developers who are accustomed with npm and have not used yarn before. This was added with the intention to make development and testing easier. Kindly accept the same
Description of PR
Added yarn installation instructions before app startup instructions under Setup section of README.md to benefit developers who are accustomed with npm and have not used yarn before. This was added with the intention to make development and testing easier. Kindly accept the same