Update dev-dependencies

Author: wooorm

package.json

@@ -48,18 +48,18 @@
     "smog-formula": "^1.0.0",
     "spache": "^1.1.0",
     "spache-formula": "^1.0.0",
-    "syllable": "^3.0.0",
+    "syllable": "^3.2.0",
     "unist-util-visit": "^1.0.0"
   },
   "devDependencies": {
-    "browserify": "^14.0.0",
+    "browserify": "^16.0.0",
     "esmangle": "^1.0.1",
-    "nyc": "^11.0.0",
-    "remark-cli": "^4.0.0",
-    "remark-preset-wooorm": "^3.0.0",
+    "nyc": "^13.0.0",
+    "remark-cli": "^6.0.0",
+    "remark-preset-wooorm": "^4.0.0",
     "retext": "^5.0.0",
     "tape": "^4.0.0",
-    "xo": "^0.18.0"
+    "xo": "^0.23.0"
   },
   "scripts": {
     "build-md": "remark . -qfo",

test.js

@@ -2,7 +2,7 @@
 
 var test = require('tape');
 var retext = require('retext');
-var readability = require('./');
+var readability = require('.');
 
 test('readability', function (t) {
   retext()
@@ -11,9 +11,9 @@ test('readability', function (t) {
       t.ifError(err, 'should not fail (#1)');
 
       t.deepEqual(
-          file.messages.map(String),
-          [],
-          'should not warn when a sentence is easy to read'
+        file.messages.map(String),
+        [],
+        'should not warn when a sentence is easy to read'
       );
     });