.pre-commit-config.yaml: add empty lines for readability

.pre-commit-config.yaml

@@ -6,6 +6,7 @@ ci:
   # https://github.com/pre-commit-ci/issues/issues/83
   autoupdate_schedule: quarterly
   skip: [latexmk]
+
 repos:
   - repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v4.4.0
@@ -25,11 +26,13 @@ repos:
         exclude: ^LICENSES\/.*|LICENSE|associations\/.*|.*\.conf$$
         # File types depending on trailing whitespace. Use identify-cli
         exclude_types: [tsv, markdown]
+
   - repo: https://github.com/thlorenz/doctoc
     rev: v2.2.0
     hooks:
       - id: doctoc
         args: [--update-only, --notitle]
+
   - repo: https://github.com/python-jsonschema/check-jsonschema
     rev: 0.23.0
     hooks:
@@ -37,23 +40,27 @@ repos:
       #- id: check-github-actions
       #- id: check-github-workflows
       - id: check-gitlab-ci
+
   - repo: https://github.com/pre-commit/mirrors-prettier
     rev: "v3.0.0-alpha.9-for-vscode"
     hooks:
       - id: prettier
         additional_dependencies:
           ["prettier@2.8.8", "@prettier/plugin-xml@2.2.0"]
+
   - repo: https://github.com/scop/pre-commit-shfmt
     rev: v3.6.0-2
     hooks:
       - id: shfmt
         #- id: shfmt-docker
+
   - repo: https://github.com/editorconfig-checker/editorconfig-checker.python
     rev: "2.7.1"
     hooks:
       - id: editorconfig-checker
         alias: ec
         args: [-disable-max-line-length]
+
   - repo: local
     hooks:
       - id: latexmk