bugfix: removed \hline in the text (\hline must not occur outside of tabular...

bugfix: removed \hline in the text (\hline must not occur outside of tabular (or similar) environments


git-svn-id: svn://svn.code.sf.net/p/rodin-b-sharp/svn/trunk/Handbook@15281 1434b563-b632-4741-aa49-43a3a8374d2e