diff -r 2337a6bc5e41 -r 7721589f3efd src/Doc/JEdit/document/root.tex
--- a/src/Doc/JEdit/document/root.tex	Wed Apr 10 23:35:25 2019 +0200
+++ b/src/Doc/JEdit/document/root.tex	Wed Apr 10 23:45:20 2019 +0200
@@ -2,6 +2,7 @@
 \usepackage{lmodern}
 \usepackage[T1]{fontenc}
 \usepackage{supertabular}
+\usepackage{rotating}
 \usepackage{graphicx}
 \usepackage{iman,extra,isar}
 \usepackage[nohyphen,strings]{underscore}