docs: update metadata

source/plugins/skyline/metadata.yml

@@ -1,6 +1,6 @@
 name: "🌇 GitHub Skyline 3D calendar"
 category: github
-index: 24
+index: 25
 supports:
   - user
 scopes: []

source/plugins/stackoverflow/metadata.yml

@@ -1,6 +1,6 @@
 name: "🗨️ Stackoverflow plugin"
 category: social
-index: 5
+index: 3
 supports:
   - user
   - organization

source/plugins/starlists/README.md

@@ -4,7 +4,7 @@ The *starlists* plugin displays your recently star lists.
 
 <table>
   <td align="center">
-    <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.starlist.svg">
+    <img src="https://github.com/lowlighter/lowlighter/blob/master/metrics.plugin.starlists.svg">
     <img width="900" height="1" alt="">
   </td>
 </table>

source/plugins/starlists/metadata.yml

@@ -1,6 +1,6 @@
 name: "💫 Starlists"
 category: github
-index: ~
+index: 24
 supports:
   - user
 scopes: []

source/plugins/tweets/metadata.yml

@@ -1,6 +1,6 @@
 name: "🐤 Latest tweets"
 category: social
-index: 3
+index: 5
 supports:
   - user
   - organization