[bitnami/charts] Add ignored files to markdown linter (#15415)

Signed-off-by: Fran Mulero <fmulero@vmware.com>

.github/workflows/markdown-linter.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - name: Install mardownlint
         run: npm install -g markdownlint-cli@0.33.0
-      - name: Checkout bitnami/charts
+      - name: Checkout project
         uses: actions/checkout@v3
       - name: Execute markdownlint
         run: |
@@ -23,6 +23,8 @@ jobs:
           files_changed_data=$(curl -s --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}' -X GET -G "$URL")
           files_changed="$(echo "$files_changed_data" | jq -r '.[] | .filename')"
           md_files="$(echo "$files_changed" | grep -o ".*\.md$" | sort | uniq || true)"
+          # Create an empty file, useful when the PR changes ignored files
+          touch ${{runner.temp}}/output
           exit_code=0
           markdownlint -o ${{runner.temp}}/output ${md_files[@]} || exit_code=$?
           while read -r line; do

.markdownlintignore

@@ -0,0 +1,2 @@
+LICENSE.md
+.github/PULL_REQUEST_TEMPLATE.md

README.md

@@ -1,4 +1,6 @@
+<!-- markdownlint-disable-next-line -->
 [![Artifact Hub](https://img.shields.io/endpoint?url=https://artifacthub.io/badge/repository/bitnami)](https://artifacthub.io/packages/search?repo=bitnami)
+<!-- markdownlint-disable-next-line -->
 [![CD Pipeline](https://github.com/bitnami/charts/actions/workflows/cd-pipeline.yml/badge.svg)](https://github.com/bitnami/charts/actions/workflows/cd-pipeline.yml)
 
 # The Bitnami Library for Kubernetes

template/README.md

@@ -1,3 +1,5 @@
+# Bitnami Charts Template
+
 This directory contains a basic scaffolding to serve as the basis for creating a new chart.
 
 Some of the items that need to be implemented are: