Technical directions on adding a course/seminar
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To add a new course/seminar, create a file in this directory, taking the existing files as
examples.We keep the pages in the language the course will be in. 

Each file  needs some specific parameters:

 * **layout** use *course* 
 * **title** the title of the course/seminar
 * **subtitle** (optionnal) a subtitle. It will be adjuncted to your title in the post
 link and just under the title in the post page
 * **instructor** instructors
 * **menu_title** the title in the menu