Improve links (http -> https) (#9064)

Merge pull request 9064

.github/first-timers-issue-template.md

@@ -2,7 +2,7 @@
 
 This issue is reserved for people who never contributed to Open Source before. We know that the process of creating a pull request is the biggest barrier for new contributors. This issue is for you 💝
 
-[About First Timers Only](http://www.firsttimersonly.com/).
+[About First Timers Only](https://www.firsttimersonly.com/).
 
 ### 🤔 What you will need to know.
 

README.markdown

@@ -28,7 +28,7 @@ See: [https://jekyllrb.com/philosophy](https://jekyllrb.com/philosophy)
 
 ## Diving In
 
-* [Migrate](http://import.jekyllrb.com/docs/home/) from your previous system
+* [Migrate](https://import.jekyllrb.com/docs/home/) from your previous system
 * Learn how [Front Matter](https://jekyllrb.com/docs/front-matter/) works
 * Put information on your site with [Variables](https://jekyllrb.com/docs/variables/)
 * Customize the [Permalinks](https://jekyllrb.com/docs/permalinks/) your posts are generated with

docs/_data/showcase.yml

@@ -1,5 +1,5 @@
 - name: Tom Preston Werner Blog
-  url: http://tom.preston-werner.com/
+  url: https://tom.preston-werner.com/
   image: tom-preston-werner.png
   categories:
     - personal
@@ -26,7 +26,7 @@
     - marketing-site
 
 - name: Vesterheim Norwegian-American Museum
-  url: http://vesterheim.org/
+  url: https://vesterheim.org/
   image: vesterheim.png
   categories:
     - marketing-site
@@ -139,7 +139,7 @@
     - marketing-site
 
 - name: Rehan Butt
-  url: http://rehanbutt.com/
+  url: https://rehanbutt.com/
   image: rehn.png
   categories:
     - personal
@@ -178,19 +178,19 @@
     - other
 
 - name: Digital Democracy
-  url: http://www.digital-democracy.org/
+  url: https://www.digital-democracy.org/
   image: digital-democracy.png
   categories:
     - other
 
 - name: HTML Reference
-  url: http://htmlreference.io/
+  url: https://htmlreference.io/
   image: htmlreference.png
   categories:
     - documentation
 
 - name: CSS Reference
-  url: http://cssreference.io/
+  url: https://cssreference.io/
   image: cssreference.png
   categories:
     - documentation
@@ -272,7 +272,7 @@
     - documentation
 
 - name: Yeoman
-  url: http://yeoman.io/
+  url: https://yeoman.io/
   image: yeoman.png
   categories:
     - open-source
@@ -308,7 +308,7 @@
     - marketing-site
 
 - name: Ruby on Rails
-  url: http://rubyonrails.org/
+  url: https://rubyonrails.org/
   image: ruby-on-rails.png
   categories:
     - marketing-site

docs/_docs/continuous-integration/buddyworks.md

@@ -57,4 +57,4 @@ This entire guide is open-source. Go ahead and [edit it][jekyll-docs-ci-buddy] i
 
 [jekyll-docs-ci-buddy]: https://github.com/jekyll/jekyll/edit/master/docs/_docs/continuous-integration/buddyworks.md
 [jekyll-help]: https://jekyllrb.com/help/
-[buddy-forum]: http://forum.buddy.works/
+[buddy-forum]: https://forum.buddy.works/

docs/_docs/datafiles.md

@@ -7,7 +7,7 @@ In addition to the [built-in variables]({{'/docs/variables/' | relative_url }})
 you can specify your own custom data that can be accessed via the [Liquid
 templating system](https://github.com/Shopify/liquid/wiki/Liquid-for-Designers).
 
-Jekyll supports loading data from [YAML](http://yaml.org/), [JSON](http://www.json.org/), [CSV](https://en.wikipedia.org/wiki/Comma-separated_values), and [TSV](https://en.wikipedia.org/wiki/Tab-separated_values) files located in the `_data` directory.
+Jekyll supports loading data from [YAML](https://yaml.org), [JSON](https://www.json.org/json-en.html), [CSV](https://en.wikipedia.org/wiki/Comma-separated_values), and [TSV](https://en.wikipedia.org/wiki/Tab-separated_values) files located in the `_data` directory.
 Note that CSV and TSV files *must* contain a header row.
 
 This powerful feature allows you to avoid repetition in your templates and to

docs/_docs/deployment/third-party.md

@@ -35,9 +35,9 @@ The [Jekyll hosting tutorial](https://www.keycdn.com/support/jekyll-hosting) pro
 
 ## Kickster
 
-Use [Kickster](http://kickster.nielsenramon.com/) for automated deploys to GitHub Pages when using unsupported plugins on GitHub Pages.
+Use [Kickster](https://kickster.nielsenramon.com/) for automated deploys to GitHub Pages when using unsupported plugins on GitHub Pages.
 
-Kickster provides a basic Jekyll project setup packed with web best practises and useful optimization tools increasing your overall project quality. Kickster ships with automated and worry-free deployment scripts for GitHub Pages.
+Kickster provides a basic Jekyll project setup packed with web best practices and useful optimization tools increasing your overall project quality. Kickster ships with automated and worry-free deployment scripts for GitHub Pages.
 
 Install the Kickster gem and you are good to go. More documentation can here found [here](https://github.com/nielsenramon/kickster#kickster). If you do not want to use the gem or start a new project you can just copy paste the deployment scripts for [Travis CI](https://github.com/nielsenramon/kickster/tree/master/snippets/travis) or [Circle CI](https://github.com/nielsenramon/kickster#automated-deployment-with-circle-ci).
 

docs/_docs/includes.md

@@ -85,7 +85,7 @@ For example, suppose you have a special image syntax with complex formatting, an
 
 ```html
 <figure>
-   <a href="http://jekyllrb.com">
+   <a href="https://jekyllrb.com">
    <img src="logo.png" style="max-width: 200px;"
       alt="Jekyll logo" />
    </a>

docs/_docs/themes.md

@@ -394,4 +394,4 @@ Themes are published via [RubyGems.org](https://rubygems.org). You will need a R
    gem push jekyll-theme-awesome-*.gem
    ```
 
-4. To release a new version of your theme, update the version number in the gemspec file, ( `jekyll-theme-awesome.gemspec` in this example ), and then repeat Steps 1 - 3 above. We recommend that you follow [Semantic Versioning](http://semver.org/) while bumping your theme-version.
+4. To release a new version of your theme, update the version number in the gemspec file, ( `jekyll-theme-awesome.gemspec` in this example ), and then repeat Steps 1 - 3 above. We recommend that you follow [Semantic Versioning](https://semver.org) while bumping your theme-version.

docs/pages/index.html

@@ -30,7 +30,7 @@ permalink: /
       <p>
         Permalinks, categories, pages, posts, and custom layouts are all first-class citizens here.
       </p>
-      <a href="http://import.jekyllrb.com">Migrate your blog &rarr;</a>
+      <a href="https://import.jekyllrb.com">Migrate your blog &rarr;</a>
     </div>
     <div class="clear"></div>
   </div>

docs/pages/jekyllconf.md

@@ -4,7 +4,7 @@ title: JekyllConf
 permalink: /jekyllconf/
 ---
 
-[JekyllConf](http://jekyllconf.com) is a free, online conference for all things Jekyll hosted by [CloudCannon](http://cloudcannon.com). Each year members of the Jekyll community speak about interesting use cases, tricks they've learned, or meta Jekyll topics.
+[JekyllConf](https://jekyllconf.com) is a free, online conference for all things Jekyll hosted by [CloudCannon](https://cloudcannon.com). Each year members of the Jekyll community speak about interesting use cases, tricks they've learned, or meta Jekyll topics.
 
 ## Featured
 

docs/pages/resources.md

@@ -91,7 +91,7 @@ Use a SaaS service as a backend for functionality on your Jekyll site
   > "Jekyll is everything that I ever wanted in a blogging engine. Really. It isn't perfect, but what's excellent about it is that if there's something wrong, I know exactly how it works and how to fix it. It runs on the your machine only, and is essentially an added"build" step between you and the browser. I coded this entire site in TextMate using standard HTML5 and CSS3, and then at the end I added just a few little variables to the markup. Presto-chango, my site is built and I am at peace with the world."
 
 - A way to [extend Jekyll](https://github.com/rfelix/jekyll_ext) without forking and modifying the Jekyll gem codebase and some [portable Jekyll extensions](https://github.com/rfelix/jekyll_ext/wiki/Extensions) that can be reused and shared.
-- [Using your Rails layouts in Jekyll](http://numbers.brighterplanet.com/2010/08/09/sharing-rails-views-with-jekyll)
+- [Using your Rails layouts in Jekyll](https://numbers.brighterplanet.com/2010/08/09/sharing-rails-views-with-jekyll)
 
 ## Forks
 

lib/jekyll/utils/win_tz.rb

@@ -25,7 +25,7 @@ module Jekyll
         #   e.g. Eastern Standard Time (EST) that is 5Hrs. to the 'west' of Prime Meridian
         #   is denoted as:
         #     EST+5 (or) EST+05:00
-        # Reference: http://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
+        # Reference: https://www.gnu.org/software/libc/manual/html_node/TZ-Variable.html
         sign = offset.positive? ? "-" : "+"
 
         rational_hours = offset.abs.to_r / 3600

test/source/_slides/example-slide-4.html

@@ -5,8 +5,8 @@
 
 Jekyll is a simple, blog-aware, static site generator. It takes a template
 directory containing raw text files in various formats, runs it through
-[Markdown](http://daringfireball.net/projects/markdown/) (or
-[Textile](http://redcloth.org/textile)) and
+[Markdown](https://daringfireball.net/projects/markdown/) (or
+[Textile](https://www.promptworks.com/textile)) and
 [Liquid](https://help.shopify.com/themes/liquid/basics)
 converters, and spits out a complete, ready-to-publish static website suitable
 for serving with your favorite web server. Jekyll also happens to be the engine

test/source/_tutorials/dive-in-and-publish-already.md

@@ -5,5 +5,5 @@ approx_time: 30 mins
 ---
 
 Jekyll converts Markdown documents to HTML by default. Don't know what's Markdown?
-Read this [documentation](http://daringfireball.net/projects/markdown/)
+Read this [documentation](https://daringfireball.net/projects/markdown/)
 While you're at it, might as well learn about [Kramdown](https://kramdown.gettalong.org/)