Add yamllint config to template

CHANGELOG.md

@@ -9,6 +9,7 @@
 * Add retry strategy for AWS megatests after releasing [nf-core/tower-action v2.2](https://github.com/nf-core/tower-action/releases/tag/v2.2)
 * Update igenomes path to the `BWAIndex` to fetch the whole `version0.6.0` folder instead of only the `genome.fa` file
 * Remove pinned Node version in the GitHub Actions workflows, to fix errors with `markdownlint`
+* Add `.yamllint.yml` to avoid line length and document start errors ([#1407](https://github.com/nf-core/tools/issues/1407))
 
 ## General
 

nf_core/pipeline-template/.github/ISSUE_TEMPLATE/bug_report.yml

@@ -1,4 +1,3 @@
-
 name: Bug report
 description: Report something that is broken or incorrect
 labels: bug

nf_core/pipeline-template/.github/workflows/linting.yml

@@ -65,7 +65,7 @@ jobs:
       - name: Install yaml-lint
         run: npm install -g yaml-lint
       - name: Run yaml-lint
-        run: yamllint $(find ${GITHUB_WORKSPACE} -type f -name "*.yml" -o -name "*.yaml")
+        run: yamllint $(find ${GITHUB_WORKSPACE} -type f -name "*.yml" -o -name "*.yaml") -c ${GITHUB_WORKSPACE}/.markdownlint.yml
 
       # If the above check failed, post a comment on the PR explaining the failure
       - name: Post PR comment

nf_core/pipeline-template/.yamllint.yml

@@ -0,0 +1,5 @@
+extends: default
+
+rules:
+    document-start: disable
+    line-length: disable