💚 add markdownlint

Author: ctcpip

.github/workflows/check.yml

@@ -14,5 +14,6 @@ jobs:
         with:
           node-version: lts/*
       - run: npm run lint
+      - run: npm run mdlint
       - run: npm run test
       - run: npm run check

.markdownlint.yml

@@ -0,0 +1,18 @@
+# for reference, see https://github.com/DavidAnson/markdownlint/blob/main/schema/.markdownlint.yaml
+
+# Default state for all rules
+default: true
+
+# MD013/line-length - Line length
+MD013: false
+
+# MD024/no-duplicate-heading/no-duplicate-header - Multiple headings with the same content
+MD024:
+  # Only check sibling headings
+  siblings_only: true
+
+# MD033/no-inline-html: Inline HTML
+MD033: false
+
+# MD034/no-bare-urls - Bare URL
+MD034: false

CODE_OF_CONDUCT.md

@@ -1,3 +1,4 @@
-This repository is a TC39 project and subscribes to its [code of conduct](https://tc39.es/code-of-conduct/). It is available at [https://tc39.es/code-of-conduct/](https://tc39.es/code-of-conduct/).
 
-To ask a question or report an issue, please email [[email protected]](mailto:[email protected]).
+This repository is a TC39 project and subscribes to its [code of conduct](https://tc39.es/code-of-conduct/). It is available at [https://tc39.es/code-of-conduct/](https://tc39.es/code-of-conduct/). <!-- markdownlint-disable-line MD041 -->
+
+To ask a question or report an issue, please email [[email protected]](mailto:[email protected]).

package.json

@@ -4,9 +4,13 @@
     "check": "node -e 'import(\"./scripts/check-delegates.mjs\").then(cd => cd.checkDelegates())'",
     "test": "node ./scripts/check-delegates-test.mjs",
     "lint": "eslint . --ext .js,.mjs,.cjs",
-    "lint:fix": "npm run lint -- --fix"
+    "lint:fix": "npm run lint -- --fix",
+    "//": "markdownlint commands ignore old files",
+    "mdlint": "markdownlint-cli2 '**/*.md' '!node_modules' '!meetings/201*/*.md' '!meetings/202[0-2]*/*.md' '!meetings/2023-0[1-3]/*.md'",
+    "mdlint:fix": "markdownlint-cli2-fix '**/*.md' '!node_modules' '!meetings/201*/*.md' '!meetings/202[0-2]*/*.md' '!meetings/2023-0[1-3]/*.md'"
   },
   "devDependencies": {
-    "eslint": "^8.41.0"
+    "eslint": "^8.41.0",
+    "markdownlint-cli2": "^0.7.1"
   }
 }