Add new Repositories plugin (#431) [skip ci]

source/plugins/repositories/README.md

@@ -0,0 +1,26 @@
+### 📓 Repositories
+
+The *repositories* plugin can display a list of chosen featured repositories.
+
+<table>
+  <td align="center">
+    <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.repositories.svg">
+    <img width="900" height="1" alt="">
+  </td>
+</table>
+
+It is mostly intended for external usage as [pinned repositories](https://www.google.com/search?client=firefox-b-d&q=github+pinned+repositories) is probably a better alternative if you want to embed them on your profile.
+
+Because of limitations of using SVG inside of `<img>` tags, people won't be able to click on it.
+
+#### ℹ️ Examples workflows
+
+[➡️ Available options for this plugin](metadata.yml)
+
+```yaml
+- uses: lowlighter/metrics@latest
+  with:
+    # ... other options
+    plugin_repositories: yes
+    plugin_repositories_list: lowlighter/metrics, denoland/deno  # List of repositories you want to feature
+```