Update dev-dependencies

Author: wooorm

cli.js

@@ -87,7 +87,7 @@ var silentlyIgnore
 var globs
 
 if (cli.flags.stdin) {
-  if (cli.input.length !== 0) {
+  if (cli.input.length > 0) {
     throw new Error('Do not pass globs with `--stdin`')
   }
 } else if (cli.input.length === 0) {

package.json

@@ -82,15 +82,15 @@
     "vfile-sort": "^2.0.0"
   },
   "devDependencies": {
-    "browserify": "^16.0.0",
+    "browserify": "^17.0.0",
     "nyc": "^15.0.0",
     "prettier": "^2.0.0",
-    "remark-cli": "^8.0.0",
-    "remark-preset-wooorm": "^7.0.0",
+    "remark-cli": "^9.0.0",
+    "remark-preset-wooorm": "^8.0.0",
     "tape": "^5.0.0",
     "tinyify": "^3.0.0",
     "vfile-reporter-json": "^2.0.0",
-    "xo": "^0.32.0"
+    "xo": "^0.34.0"
   },
   "scripts": {
     "format": "remark . -qfo && prettier . --write && xo --fix",

readme.md

@@ -377,7 +377,7 @@ Yields:
 
 Check [MDX][] (ignoring syntax).
 
-> Note: the syntax for [MDX@2][mdx-next], while currently in beta, is used in
+> Note: the syntax for [MDX\@2][mdx-next], while currently in beta, is used in
 > alex.
 
 ###### Parameters