Correct typesetting for body copy and chapter headings.
Add precontent pages to Table of contents

Conforms to Appendix 3 in https://www.tut.fi/pop/opiskelu/tiedekunnat/ttt/Tuta_opinnaytetyoohje_2007.pdf
Usage examples to fill in the table of contents
Parskip doesn't affect table of contents
Table of contents styling