[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

README.md

@@ -3,7 +3,8 @@
 This problem matcher lets you show errors from GNU `sort` as annotation in
 GitHub Actions.
 
-Based on [korelstar](https://github.com/korelstar)'s [xmllint-problem-matcher](https://github.com/korelstar/xmllint-problem-matcher).
+Based on [korelstar](https://github.com/korelstar)'s
+[xmllint-problem-matcher](https://github.com/korelstar/xmllint-problem-matcher).
 
 ## Inputs
 
@@ -18,5 +19,5 @@ No outputs are generated apart from a configured problem matcher.
 Add the step to your workflow, before `sort -c` is called.
 
 ```yaml
-    - uses: codespell-project/sort-problem-matcher@v1
+  - uses: codespell-project/sort-problem-matcher@v1
 ```