feat: improve markdown content workflow

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: ruibaby

package.json

@@ -57,13 +57,18 @@
     "cac": "^7.0.0",
     "cli-table3": "^0.6.5",
     "dayjs": "^1.11.20",
+    "gray-matter": "^4.0.3",
+    "js-yaml": "^4.1.1",
+    "markdown-it": "^14.1.1",
     "mime-types": "^3.0.2",
     "ora": "^9.3.0",
     "pretty-bytes": "^7.1.0",
     "semver": "^7.7.4",
     "string-width": "^8.2.0"
   },
   "devDependencies": {
+    "@types/js-yaml": "^4.0.9",
+    "@types/markdown-it": "^14.1.2",
     "@types/mime-types": "^3.0.1",
     "@types/node": "^24.12.0",
     "@types/semver": "^7.7.1",