Update dev-dependencies

Author: wooorm

package.json

@@ -38,7 +38,7 @@
     "remark-usage": "^6.1.3",
     "tape": "^4.10.1",
     "tinyify": "^2.5.0",
-    "unified": "^7.1.0",
+    "unified": "^8.0.0",
     "unist-builder": "^1.0.3",
     "xo": "^0.24.0"
   },

test/index.js

@@ -1,7 +1,6 @@
-var test = require('tape')
-
 var fs = require('fs')
 var path = require('path')
+var test = require('tape')
 var unified = require('unified')
 var remarkParse = require('remark-parse')
 var remarkAttr = require('remark-attr')