Merge branch 'docs-articles-layout-frontmatter' into 'master'

Docs: Update all articles with the new layout (metadata from the frontmatter)

Closes #42831

See merge request gitlab-org/gitlab-ce!17187

doc/administration/auth/how_to_configure_ldap_gitlab_ce/index.md

-# How to configure LDAP with GitLab CE
+---
+author: Chris Wilson
+author_gitlab: MrChrisW
+level: intermediary
+article_type: admin guide
+date: 2017-05-03
+---
 
-> **[Article Type](../../../development/writing_documentation.html#types-of-technical-articles):** admin guide ||
-> **Level:** intermediary ||
-> **Author:** [Chris Wilson](https://gitlab.com/MrChrisW) ||
-> **Publication date:** 2017-05-03
+# How to configure LDAP with GitLab CE
 
 ## Introduction
 

doc/ci/examples/artifactory_and_gitlab/index.md

 ---
 redirect_from: 'https://docs.gitlab.com/ee/articles/artifactory_and_gitlab/index.html'
+author: Fabio Busatto
+author_gitlab: bikebilly
+level: intermediary
+article_type: tutorial
+date: 2017-08-15
 ---
 
 # How to deploy Maven projects to Artifactory with GitLab CI/CD
 
-> **[Article Type](../../../development/writing_documentation.md#types-of-technical-articles):** tutorial ||
-> **Level:** intermediary ||
-> **Author:** [Fabio Busatto](https://gitlab.com/bikebilly) ||
-> **Publication date:** 2017-08-15
-
 ## Introduction
 
 In this article, we will show how you can leverage the power of [GitLab CI/CD](https://about.gitlab.com/features/gitlab-ci-cd/)

doc/ci/examples/laravel_with_gitlab_and_envoy/index.md

 ---
 redirect_from: 'https://docs.gitlab.com/ee/articles/laravel_with_gitlab_and_envoy/index.html'
+author: Mehran Rasulian
+author_gitlab: mehranrasulian
+level: intermediary
+article_type: tutorial
+date: 2017-08-31
 ---
 
 # Test and deploy Laravel applications with GitLab CI/CD and Envoy
 
-> **[Article Type](../../../development/writing_documentation.md#types-of-technical-articles):** tutorial ||
-> **Level:** intermediary ||
-> **Author:** [Mehran Rasulian](https://gitlab.com/mehranrasulian) ||
-> **Publication date:** 2017-08-31
-
 ## Introduction
 
 GitLab features our applications with Continuous Integration, and it is possible to easily deploy the new code changes to the production server whenever we want.

doc/development/writing_documentation.md

@@ -254,18 +254,25 @@ through the process of how to use it systematically.
 
 #### Special format
 
-Every **Technical Article** contains, in the very beginning, a blockquote with the following information:
-
-- A reference to the **type of article** (user guide, admin guide, tech overview, tutorial)
-- A reference to the **knowledge level** expected from the reader to be able to follow through (beginner, intermediate, advanced)
-- A reference to the **author's name** and **GitLab.com handle**
-- A reference of the **publication date**
-
-```md
-> **[Article Type](../../development/writing_documentation.html#types-of-technical-articles):** tutorial ||
-> **Level:** intermediary ||
-> **Author:** [Name Surname](https://gitlab.com/username) ||
-> **Publication date:** AAAA-MM-DD
+Every **Technical Article** contains a frontmatter at the beginning of the doc
+with the following information:
+
+- **Type of article** (user guide, admin guide, tech overview, tutorial)
+- **Knowledge level** expected from the reader to be able to follow through (beginner, intermediate, advanced)
+- **Author's name** and **GitLab.com handle**
+- **Publication date**
+
+For example:
+
+
+```yaml
+---
+author: John Doe
+author_gitlab: johnDoe
+level: beginner
+article_type: user guide
+date: 2017-02-01
+---
 ```
 
 #### Technical Articles - Writing Method

doc/install/openshift_and_gitlab/index.md

-# Getting started with OpenShift Origin 3 and GitLab
+---
+author: Achilleas Pipinellis
+author_gitlab: axil
+level: intermediary
+article_type: tutorial
+date: 2016-06-28
+---
 
-> **[Article Type](../../development/writing_documentation.html#types-of-technical-articles):** tutorial ||
-> **Level:** intermediary ||
-> **Author:** [Achilleas Pipinellis](https://gitlab.com/axil) ||
-> **Publication date:** 2016-06-28
+# Getting started with OpenShift Origin 3 and GitLab
 
 ## Introduction
 

doc/topics/git/how_to_install_git/index.md

-# Installing Git
+---
+author: Sean Packham
+author_gitlab: SeanPackham
+level: beginner
+article_type: user guide
+date: 2017-05-15
+---
 
-> **[Article Type](../../../development/writing_documentation.html#types-of-technical-articles):** user guide ||
-> **Level:** beginner ||
-> **Author:** [Sean Packham](https://gitlab.com/SeanPackham) ||
-> **Publication date:** 2017-05-15
+# Installing Git
 
 To begin contributing to GitLab projects
 you will need to install the Git client on your computer.

doc/topics/git/numerous_undo_possibilities_in_git/index.md

-# Numerous undo possibilities in Git
+---
+author: Crt Mori
+author_gitlab: Letme
+level: intermediary
+article_type: tutorial
+date: 2017-05-15
+---
 
-> **[Article Type](../../../development/writing_documentation.md#types-of-technical-articles):**  tutorial ||
-> **Level:** intermediary ||
-> **Author:** [Crt Mori](https://gitlab.com/Letme)  ||
-> **Publication date:** 2017-08-17
+# Numerous undo possibilities in Git
 
 ## Introduction
 

doc/user/project/pages/getting_started_part_four.md

-# GitLab Pages from A to Z: Part 4
+---
+author: Marcia Ramos
+author_gitlab: marcia
+level: intermediate
+article_type: user guide
+date: 2017-02-22
+---
 
-> **Article [Type](../../../development/writing_documentation.html#types-of-technical-articles)**: user guide || 
-> **Level**: intermediate || 
-> **Author**: [Marcia Ramos](https://gitlab.com/marcia) ||
-> **Publication date:** 2017/02/22
+# GitLab Pages from A to Z: Part 4
 
 - [Part 1: Static sites and GitLab Pages domains](getting_started_part_one.md)
 - [Part 2: Quick start guide - Setting up GitLab Pages](getting_started_part_two.md)

doc/user/project/pages/getting_started_part_one.md

-# GitLab Pages from A to Z: Part 1
+---
+author: Marcia Ramos
+author_gitlab: marcia
+level: beginner
+article_type: user guide
+date: 2017-02-22
+---
 
-> **Article [Type](../../../development/writing_documentation.html#types-of-technical-articles)**: user guide || 
-> **Level**: beginner || 
-> **Author**: [Marcia Ramos](https://gitlab.com/marcia) ||
-> **Publication date:** 2017/02/22
+# GitLab Pages from A to Z: Part 1
 
 - **Part 1: Static sites and GitLab Pages domains**
 - [Part 2: Quick start guide - Setting up GitLab Pages](getting_started_part_two.md)

doc/user/project/pages/getting_started_part_three.md

 ---
 last_updated: 2017-09-28
+author: Marcia Ramos
+author_gitlab: marcia
+level: beginner
+article_type: user guide
+date: 2017-02-22
 ---
 
 # GitLab Pages from A to Z: Part 3
 
-> **[Article Type](../../../development/writing_documentation.md#types-of-technical-articles)**: user guide || 
-> **Level**: beginner || 
-> **Author**: [Marcia Ramos](https://gitlab.com/marcia) ||
-> **Publication date:** 2017-02-22 ||
-> **Last updated**: 2017-09-28
-
 - [Part 1: Static sites and GitLab Pages domains](getting_started_part_one.md)
 - [Part 2: Quick start guide - Setting up GitLab Pages](getting_started_part_two.md)
 - **Part 3: Setting Up Custom Domains - DNS Records and SSL/TLS Certificates**

doc/user/project/pages/getting_started_part_two.md

-# GitLab Pages from A to Z: Part 2
+---
+author: Marcia Ramos
+author_gitlab: marcia
+level: beginner
+article_type: user guide
+date: 2017-02-22
+---
 
-> **Article [Type](../../../development/writing_documentation.html#types-of-technical-articles)**: user guide || 
-> **Level**: beginner || 
-> **Author**: [Marcia Ramos](https://gitlab.com/marcia) ||
-> **Publication date:** 2017/02/22
+# GitLab Pages from A to Z: Part 2
 
 - [Part 1: Static sites and GitLab Pages domains](getting_started_part_one.md)
 - **Part 2: Quick start guide - Setting up GitLab Pages**