The great refactor (#82)

source/plugins/posts/README.md

@@ -0,0 +1,23 @@
+### ✒️ Recent posts
+
+The recent *posts* plugin displays recent articles you wrote on an external source, like [dev.to](https://dev.to).
+
+<table>
+  <td align="center">
+    <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.posts.svg">
+    <img width="900" height="1" alt="">
+  </td>
+</table>
+
+#### ℹ️ Examples workflows
+
+[➡️ Available options for this plugin](metadata.yml)
+
+```yaml
+- uses: lowlighter/metrics@latest
+  with:
+    # ... other options
+    plugin_posts: yes
+    plugin_posts_source: dev.to      # External source
+    plugin_people_user: .github.user # Use same username as GitHub login
+```