docs: improve readme [skip ci]

source/plugins/introduction/README.md

@@ -5,10 +5,10 @@ It is mostly intended for metrics used outside of GitHub, since these informatio
 
 <table>
   <td align="center">
-    <details open><summary>Account version</summary>
+    <details open><summary>For an user or an organization</summary>
       <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.introduction.svg">
     </details>
-    <details open><summary>Repository version</summary>
+    <details><summary>For a repository</summary>
       <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.introduction.repository.svg">
     </details>
     <img width="900" height="1" alt="">

source/plugins/introduction/metadata.yml

@@ -1,6 +1,6 @@
 name: "🙋 Introduction"
 category: github
-index: 2
+index: 22
 supports:
   - user
   - organization