Remove old preparations

PREPARATIONS.md

 # Preparations for course: Code and data management with Git
 
-- Date: December 1st, 2015
-- Time: 9:00 - 17:00
-- Location: T-0-010
-- Teachers:
-  - Martijn Vermaat (m.vermaat.hg@lumc.nl)
-  - Jeroen Laros (j.f.j.laros@lumc.nl)
-  - Wibowo Arindrarto (W.Arindrarto@lumc.nl)
-  - Szymon M. Kiełbasa (S.M.Kielbasa@lumc.nl)
-
-
-## Program
-
-Very preliminary, please update, extend, or comment.
-
-| Time  | Subject           | Teacher           | Contents                  |
-| ----- | ----------------- | ----------------- | ------------------------- |
-| 09:00 | **Introduction**  | Jeroen Laros      | Welcome, GitLab overview  |
-| 09:30 | *Practical*       |                   |                           |
-| 09:45 | **Git basics**    | Wibowo Arindrarto | Basic Git command line fu |
-| 10:15 | *Practical*       |                   |                           |
-| 10:45 | Coffee            |                   |                           |
-| 11:00 | **Git remotes**   | Martijn Vermaat   | Collaborating via GitLab  |
-| 11:30 | *Practical*       |                   |                           |
-| 12:00 | Lunch             |                   |                           |
-| 13:00 | **Git conflicts** | Martijn Vermaat?  | Merge conflicts, protected branches |
-| 13:30 | *Practical*       |                   |                           |
-| 14:00 | Break             |                   |                           |
-| 14:30 | **Data analysis** | Szymon M. Kiełbasa | [GitLab use cases: markdown, reproducible reports from Rstudio](usecases/) |
-| 15:00 | *Practical*       |                   |                           |
-| 15:30 | Leftover minutes  |                   | TODO: assign to some lecture or practical |
-| 16:00 | Questions, drinks |                   |                           |
-
-- Branches: not in this course
-- Git annex: not in this course
-
-
 ## Participants
 
 Confirmed:
@@ -56,26 +20,3 @@ Cancelled:
 4. Saeed Katiraei
 5. Tarek Malas
 6. Roberta Rivoto
-
-
-## Course materials
-
-We can reuse many slides from last year, see the contents of this repository.
-
-We will provide the course materials and program via GitLab. So this GitLab
-project will be the course homepage.
-
-The old course homepage can still be found here, but will be deleted before the
-course starts: https://humgenprojects.lumc.nl/trac/humgenprojects/wiki/gitcourse
-
-
-# Prerequisites
-
-Affinity with the UNIX shell is required before taking the course. For example,
-our [scripting course](https://humgenprojects.lumc.nl/trac/humgenprojects/wiki/scripting)
-is more than enough, or you could go though [tutorials 1-3 here](http://www.ee.surrey.ac.uk/Teaching/Unix/).
-
-We encourage you to bring your own laptop, but make sure it has the necessary
-software installed (see [Software installation](https://humgenprojects.lumc.nl/trac/humgenprojects/wiki/gitcourse/SoftwareInstallation)).
-We can also provide you with a laptop that has all the required software
-installed. The lessons are interactive, meaning that you really need a laptop.