[README.md] Update shields (and remove old removed dependency checker) ; reflect current repo license ; [.github/workflows/main.yml] Reduce generated README ; switch from ng deploy to npx angular-cli-ghpages

Triggered by commit: offscale/offscale-www@337731a

Author: SamuelMarks

README.md

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+offscale.io
+===========
+[![License](https://img.shields.io/badge/license-Apache--2.0%20OR%20MIT%20OR%20CC0--1.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
+[![GitHub Pages](https://github.com/offscale/offscale-www/actions/workflows/main.yml/badge.svg)](https://github.com/offscale/offscale-www/actions/workflows/main.yml)
+
+Branding, contact, and information SPA.