docs(plugins): clarification, fix typos and style

source/plugins/licenses/metadata.yml

@@ -1,6 +1,7 @@
-name: "📜 Repository licenses"
+name: 📜 Repository licenses
 category: github
-description: This plugin display repository license informations like permissions, limitations and conditions along with additional stats about dependencies.
+description: |
+  This plugin display repository license informations like permissions, limitations and conditions along with additional stats about dependencies.
 examples:
   +permissions, limitations and conditions: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.licenses.svg
   +licenses overview: https://github.com/lowlighter/metrics/blob/examples/metrics.plugin.licenses.ratio.svg
@@ -12,23 +13,31 @@ scopes:
 inputs:
 
   plugin_licenses:
-    description: Enable licenses plugin
+    description: |
+      Enable licenses plugin
     type: boolean
     default: no
-    extras: yes
+    extras:
+      - metrics.run.tempdir
+      - metrics.run.git
+      - metrics.run.licensed
+      - metrics.run.user.cmd
 
   plugin_licenses_setup:
-    description: Setup command
+    description: |
+      Setup command
     type: string
     default: ""
     example: npm ci
 
   plugin_licenses_ratio:
-    description: Display used licenses ratio
+    description: |
+      Used licenses ratio
     type: boolean
     default: no
 
   plugin_licenses_legal:
-    description: Display permissions, limitations and conditions about licenses
+    description: |
+      Permissions, limitations and conditions about used licenses
     type: boolean
     default: yes