docs: move templated files to a dedicated folder

.github/readme/partials/templated/README.md

@@ -0,0 +1,7 @@
+# 📊 Metrics [<img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=280144&theme=dark" alt="" align="right" width="190" height="41">](https://www.producthunt.com/posts/github-metrics?utm_source=badge-featured&utm_medium=badge&utm_souce=badge-github-metrics)
+
+[![Continuous integration](https://github.com/lowlighter/metrics/actions/workflows/ci.yml/badge.svg)](https://github.com/lowlighter/metrics/actions/workflows/ci.yml)
+
+<% for (const partial of ["templated/introduction", "templated/documentation", "license"]) { -%>
+<%- await include(`/partials/${partial}.md`) %>
+<% } %>