chore: change comments in dependabot.yml

Author: pavelsaman

.github/dependabot.yml

@@ -1,11 +1,13 @@
 version: 2
+
 registries:
   npm-github:
     type: npm-registry
     url: https://npm.pkg.github.com
     token: ${{ secrets.SLIDO_BOT_TOKEN }}
+
 updates:
-  # CI/CD
+  # CI actions upgrades
   - package-ecosystem: 'github-actions'
     directory: '/'
     schedule:
@@ -17,7 +19,8 @@ updates:
     assignees:
       - 'pavelsaman'
     open-pull-requests-limit: 10
-  # root
+
+  # NPM packages upgrades
   - package-ecosystem: 'npm'
     registries:
       - npm-github