docs: re-arrange indexes

source/plugins/code/metadata.yml

@@ -8,7 +8,7 @@ description: |
   > Use at your own risk, *metrics* and its authors cannot be held responsible for any resulting code leaks.
 examples:
   default: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.code.svg
-index: 12
+index: 19
 supports:
   - user
   - organization

source/plugins/introduction/metadata.yml

@@ -7,7 +7,7 @@ description: |
 examples:
   +for a user or an organization: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.introduction.svg
   for a repository: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.introduction.repository.svg
-index: 22
+index: 26
 supports:
   - user
   - organization

source/plugins/lines/metadata.yml

@@ -5,7 +5,7 @@ description: |
 examples:
   +Repositories and diff history: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.lines.history.svg
   Compact display in base plugin: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.lines.svg
-index: 18
+index: 11
 supports:
   - user
   - organization

source/plugins/projects/metadata.yml

@@ -6,7 +6,7 @@ description: |
   > ℹ️ This plugin currently only supports [GitHub projects boards](https://docs.github.com/en/issues/organizing-your-work-with-project-boards/managing-project-boards/about-project-boards) and not [GitHub projects (beta)](https://docs.github.com/en/issues/trying-out-the-new-projects-experience/about-projects)
 examples:
   default: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.projects.svg
-index: 11
+index: 18
 supports:
   - user
   - organization

source/plugins/skyline/metadata.yml

@@ -7,7 +7,7 @@ description: |
 examples:
   +GitHub Skyline: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.skyline.svg
   GitHub City: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.skyline.city.svg
-index: 26
+index: 22
 supports:
   - user
 scopes: []

source/plugins/traffic/metadata.yml

@@ -4,7 +4,7 @@ description: |
   This plugin displays the number of page views across affiliated repositories.
 examples:
   default: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.traffic.svg
-index: 19
+index: 12
 supports:
   - user
   - organization