docs(README.md): Update Readme.md (#443)
docs(README.md): Update Readme.md (#443)

* chore(release): 3.23.2

* Update Readme.md

added link to signup page under installation.

Co-authored-by: pcholuj <5e550ddda82c64cf95b4657e8a378df409cd8cd3@filestack.com>
filestack/filestack-js,filestack/filestack-js