Update to markdownlint-cli2

Author: trask

.github/config/.markdownlint-cli2.yaml

@@ -0,0 +1,22 @@
+# See https://github.com/DavidAnson/markdownlint/blob/main/doc/Rules.md
+# and https://github.com/DavidAnson/markdownlint-cli2
+
+# Configuration for markdownlint rules
+config:
+  # Default state for all rules
+  default: true
+
+  ul-style: false
+  line-length: false
+  no-duplicate-header:
+    siblings_only: true
+  ol-prefix:
+    style: ordered
+  no-inline-html: false
+  fenced-code-language: false
+
+# Globs to ignore (in addition to .gitignore)
+ignores:
+  - "**/build/**"
+  - "CHANGELOG.md"
+  - "licenses/licenses.md"

.github/config/markdownlint.yml

@@ -14,4 +14,4 @@ jobs:
 
       - name: Run markdownlint
         run: |
-          npx markdownlint-cli@0.46.0 -c .github/config/markdownlint.yml -p .gitignore **/*.md -i licenses/licenses.md
+          npx markdownlint-cli2@0.17.1 --config .github/config/.markdownlint-cli2.yaml "**/*.md"