docs(install): Add documentation for installing and running locally (#300)
docs(install): Add documentation for installing and running locally (#300)

* docs(install): Add documentation for installing and running locally

Added documentation embracing the best practice of installing and running packages locally. This
supports easier package version control both via local package.json/npm-shrinkwrap.json and is more
easily compatible with third party node/npm version managers.

* docs(install): Update docs to use the verbose version of NPM commands.

commitizen/cz-cli,commitizen/cz-cli