Use https

.editorconfig

@@ -1,4 +1,4 @@
-# http://editorconfig.org
+# https://editorconfig.org/
 root = true
 
 [*]

README.md

@@ -8,7 +8,7 @@ Grunt plugin to extract & inline critical-path CSS from HTML
 
 ## Getting Started
 
-If you haven't used [Grunt](http://gruntjs.com/) before, be sure to check out the [Getting Started](http://gruntjs.com/getting-started) guide, as it explains how to create a [Gruntfile](http://gruntjs.com/sample-gruntfile) as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
+If you haven't used [Grunt](https://gruntjs.com/) before, be sure to check out the [Getting Started](https://gruntjs.com/getting-started) guide, as it explains how to create a [Gruntfile](https://gruntjs.com/sample-gruntfile) as well as install and use Grunt plugins. Once you're familiar with that process, you may install this plugin with this command:
 
 ```shell
 npm install grunt-critical --save-dev
@@ -24,7 +24,7 @@ grunt.loadNpmTasks('grunt-critical');
 
 _Run this task with the `grunt critical` command._
 
-Task targets, files and options may be specified according to the grunt [Configuring tasks](http://gruntjs.com/configuring-tasks) guide.
+Task targets, files and options may be specified according to the grunt [Configuring tasks](https://gruntjs.com/configuring-tasks) guide.
 
 Generate critical path css and inline it with [critical](https://github.com/addyosmani/critical).