Update dev-dependencies

Author: wooorm

package.json

@@ -1,7 +1,7 @@
 {
   "name": "mdast-util-gfm",
   "version": "0.1.0",
-  "description": "mdast extension to parse and serialize GFM (gitHub Flavored Markdown)",
+  "description": "mdast extension to parse and serialize GFM (GitHub Flavored Markdown)",
   "license": "MIT",
   "keywords": [
     "unist",
@@ -44,15 +44,15 @@
   "devDependencies": {
     "github-slugger": "^1.0.0",
     "hast-util-to-html": "^7.0.0",
-    "mdast-util-from-markdown": "^0.7.0",
+    "mdast-util-from-markdown": "^0.8.0",
     "mdast-util-to-hast": "^10.0.0",
     "mdast-util-to-markdown": "^0.4.0",
     "micromark-extension-gfm": "^0.3.0",
     "node-fetch": "^2.0.0",
     "nyc": "^15.0.0",
     "prettier": "^2.0.0",
-    "remark-cli": "^8.0.0",
-    "remark-preset-wooorm": "^7.0.0",
+    "remark-cli": "^9.0.0-alpha.1",
+    "remark-preset-wooorm": "^8.0.0",
     "tape": "^5.0.0",
     "xo": "^0.33.0"
   },