Update index.md

Added linter to end of file

Author: kathlam

collections/clean-code-linters/index.md

@@ -1,6 +1,5 @@
 ---
 items:
- - trunk-io/plugins
  - standard/standard
  - eslint/eslint
  - jshint/jshint
@@ -34,6 +33,7 @@ items:
  - pmd/pmd
  - diffplug/spotless
  - spotbugs/spotbugs
+ - trunk-io/plugins
 display_name: Clean code linters
 created_by: holman
 ---