Error with the install command in readme

[adarshdigievo]

The current install instruction errors out at the brew install step:

brew tap serpapi/homebrew-tap
brew install serpapi

Warning: No available formula with the name "serpapi". Did you mean senpai?
==> Searching for similarly named formulae and casks...
==> Formulae
serpapi/tap/serpapi-cli ✔                                    senpai

This is because the formula in the homebrew tap repo is named serpapi-cli.

Either we can edit the README here to use brew install serpapi-cli, or we can edit the formula name in the serpapi/homebrew-tap repo to fix this.