diff --git a/20170306_stammtisch.md b/20170306_stammtisch.md
index 3396d70006d301b9890833d571aa291790046850..97ea46e1c30801dce101433d7d18fdaf8478a23c 100644
--- a/20170306_stammtisch.md
+++ b/20170306_stammtisch.md
@@ -19,44 +19,50 @@
 - tmux and vim, have a look at https://git.idiv.de/scientific-computing/RStudio-Docu/blob/master/tmux.md
 - search for tmux, vim and python PEP8
 - use ! to execute commands from inside vim on the command line, e.g. the following will run wc on the current file
-  {{{
-  :! wc % 
-  }}}
+
+    ```
+    :! wc %
+    ```
 - search for dotfiles
 
 ## Maria, ask git when a line of code did change
-git will tell you in which commit a file changed
-{{
-git log dotfile.yml
-}}}
+- git will tell you in which commit a file changed
+
+    ```
+    git log dotfile.yml
+    ```
+- git will tell you when the line range in a file changed
+    ```
+    git log -L 10,12:dotfile.yml
+    ```
 
-git will tell you when the line range in a file changed
-{{{
-git log -L 10,12:dotfile.yml
-}}}
+- git will tell you when a function in a file changed
 
-git will tell you when a function in a file changed
-{{{
-git log -L :is_workday:analysis.r
-}}}
+    ```
+    git log -L :is_workday:analysis.r
+    ```
 
 ## Maria how to check out individual file (with a new name)
-{{{
-git checkout  14134e6 muhkuh
-}}}
+- tell git to checkout file from commit (overwrites current version)
+    ```
+    git checkout 14134e6 muhkuh
+    ```
 
-or to a new file (mind the :)
-{{{
-git checkout  14134e6:muhkuh > newkuh
-}}}
+- or checkout to a new file (mind the :)
+
+    ```
+    git checkout  14134e6:muhkuh > newkuh
+    ```
 
 ## Christian how to add users to a group in Linux
-{{{
-usermod -a -G groupName userName
-}}}
+- append a group to the groups a user is member of
+
+    ```
+    usermod -a -G groupName userName
+    ```
 
 ## Christian file directory structure in Linux
-Why do you need a /?
+Why do you need a `/`?
 
 - Everything starts at / (say root).
 - Your user usually has a home directory like /home/username