Badges for the readme

README.md

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-# think-metric
-Americans for Metrication
+<img src=https://think-metric.org/graphics/think-metric-logo.png width=100 alt=logo>
+
+# Think Metric
+## 🇺🇸 Americans for Metrication 🇺🇸
+
+_We promote metric units for casual everyday use in America._
+
+[![License:MIT](https://img.shields.io/badge/License-CC0-blue.svg)](https://github.com/center-key/think-metric/blob/main/LICENSE.txt)
+[![Build](https://github.com/center-key/think-metric/actions/workflows/run-spec-on-push.yaml/badge.svg)](https://github.com/center-key/think-metric/actions/workflows/run-spec-on-push.yaml)
+[![Publish Website](https://github.com/center-key/think-metric/actions/workflows/publish-website.yaml/badge.svg)](https://github.com/center-key/think-metric/actions/workflows/publish-website.yaml)
+
+This project manages the website:
+https://think-metric.org
+
+The logo is built using:
+https://think-metric.org/logo.html
+
+Pull requests welcome.
+
+### Contributor Notes
+```shell
+$ cd think-metric
+$ npm install
+$ npm test
+$ npm run interactive
+```
+
+<br>
+
+---
+[CC0 License](LICENSE.txt)