Delete annex.en.md

01.curriculum/01.physics-chemistry-biology/03.niv3/02.geometrical-optics/05.paraxial-optics/01.paraxial-optics-conditions/03.new-course-beyond/annex.en.md

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-title: 'new course : beyond'
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-
-! *YOUR  CHALLENGE*  :  look at the picture, and think of the right answers to the following questions
-!
-! _Do not look at the answer, take time to think, a few days if necessary. The time to build your mental representation of the phenomenon, to formulate it in words is important, a thousand times more important than the ephemeral instant where you read the fews words of the solution._
-!
-! <details markdown=1>
-! <summary>
-! INDICE "key word"
-! </summary>
-! diffusion
-! </details>
-! <details markdown=1>
-! <summary>
-! ANSWER
-! </summary>
-! diffusion
-! </details>
-
-
-!!!! *DIFFICULT POINT* (contribute, or indicate a difficult point of understanding)
-!!!!
-
-!! *BEYOND* (to contribute)
-!!
-
-!! *CULTURAL POINT* (contributor)
-!!
-
-!!! *DO  YOU  MASTER ?*
-!!! <details markdown=1>
-!!! <Summary>
-!!! Describe the test
-!!! </summary>
-!!! The text of the test (and its images, figures, audio, video, etc ...)
-!!!
-!!! Question text
-!!! <details markdown=1>
-!!! <summary>
-!!! Answer choice 1
-!!! </summary>
-!!! Text if this answer 1 is chosen
-!!! </details>
-!!! <details markdown=1>
-!!! <summary>
-!!! Answer choice 2
-!!! </summary>
-!!! Text if this answer 2 is chosen
-!!! </details>
-!!! <!--possibility to add answers, questions-->
-!!! -----
-!!! <details markdown=1>
-!!! <summary>
-!!! Complete solution.
-!!! </summary>
-!!! text of the solution
-!!! </details>