readme tweaks

readme.md

@@ -1,19 +1,19 @@
 # semver-regex [![Build Status](https://travis-ci.org/sindresorhus/semver-regex.svg?branch=master)](https://travis-ci.org/sindresorhus/semver-regex)
 
-> Regular expression for matching [semver](https://github.com/isaacs/node-semver) versions
+> Regular expression for matching [semver](https://github.com/npm/node-semver) versions
 
 
 ## Install
 
-```sh
+```
 $ npm install --save semver-regex
 ```
 
 
 ## Usage
 
 ```js
-var semverRegex = require('semver-regex');
+const semverRegex = require('semver-regex');
 
 semverRegex().test('v1.0.0');
 //=> true
@@ -22,7 +22,7 @@ semverRegex().test('1.2.3-alpha.10.beta.0+build.unicorn.rainbow');
 //=> true
 
 semverRegex().exec('unicorn 1.0.0 rainbow')[0];
-//=> 1.0.0
+//=> '1.0.0'
 
 'unicorn 1.0.0 and rainbow 2.1.3'.match(semverRegex());
 //=> ['1.0.0', '2.1.3']
@@ -36,4 +36,4 @@ semverRegex().exec('unicorn 1.0.0 rainbow')[0];
 
 ## License
 
-MIT © [Sindre Sorhus](http:https://sindresorhus.com)
+MIT © [Sindre Sorhus](https:https://sindresorhus.com)