Header for index and contribute sites.

Author: rsanfer

_tutorials/contribute.md

@@ -1,6 +1,12 @@
 ---
 title: Contribute
 permalink: /tutorials/contribute/
+disable_header: true
+written_by: economon
+for_version: 6.0.0
+revised_by: economon
+revision_date: 2018-02-13
+revised_version: 6.0.0
 ---
 
 Do you want to contribute to SU2 with a tutorial? It's easy! Just create a fork of the [SU2 Project Website repository](https://github.com/su2code/su2code.github.io), write your tutorial and open a pull request. 

_tutorials/index.md

@@ -3,6 +3,12 @@ title: The SU2 Tutorial Collection
 permalink: /tutorials/home/
 redirect_from: /tutorials/index.html
 disable_comments: true
+disable_header: true
+written_by: economon
+for_version: 6.0.0
+revised_by: talbring
+revision_date: 2019-11-27
+revised_version: 7.0.0
 ---
 
 ## Getting started with SU2