fix #69 remove German line

Author: niccokunzmann

Diff for: en/05-01.html

@@ -2,7 +2,6 @@
 title: Sets with Ranges
 ---
 <p>
-  Du kannst Bereiche abkürzen, indem du statt aller Zeichen einen
   You can shorten ranges of characters by writing a minus
   <span class="regex">-</span> between the characters.
   To find all digits from 1 to 5, you can use <span class="regex">[1-5]</span>.