fix: fix linting for code blocks inside Markdown

Author: cwillisf

lib/eslint.mjs

@@ -5,12 +5,12 @@ import htmlSettings from 'eslint-plugin-html/src/settings.js'
 import importPlugin from 'eslint-plugin-import'
 import jsdoc from 'eslint-plugin-jsdoc'
 import jsxA11y from 'eslint-plugin-jsx-a11y'
-import markdown from 'eslint-plugin-markdown'
 import react from 'eslint-plugin-react'
 import reactHooks from 'eslint-plugin-react-hooks'
 import tseslint from 'typescript-eslint'
 import eslintComments from '@eslint-community/eslint-plugin-eslint-comments/configs'
 import eslint from '@eslint/js'
+import markdown from '@eslint/markdown'
 import legacyES6 from './legacy/es6.mjs'
 import legacyBase from './legacy/index.mjs'
 import legacyNode from './legacy/node.mjs'
@@ -81,7 +81,9 @@ const miscFileRules = tseslint.config([
     name: 'scratch/miscFileRules[eslint-plugin-markdown]',
     files: fileGlobs.markdown,
     extends: [markdown.configs.recommended],
+    language: 'markdown/gfm', // Github Flavored Markdown
   },
+  markdown.configs.processor, // Process script blocks inside Markdown files
 ])
 
 /**
@@ -336,7 +338,6 @@ const recommended = tseslint.config(
   {
     name: 'scratch/recommended',
   },
-  miscFileRules,
   {
     files: fileGlobs.allScript,
     extends: [typeFreeRules],
@@ -350,6 +351,7 @@ const recommended = tseslint.config(
       },
     },
   },
+  miscFileRules,
   eslintConfigPrettier,
 )