Merge pull request #8 from matimatik/master

Sixth issue of second volume
Sixth issue of Second volume typo
Sixth issue of Second volume typo
Sixth issue of Second volume typo
Seventh Issue of Second Volume
Seventh Issue of Second Volume reformatted and typo
Seventh Issue of Second Volume typo
Seventh Issue of Second Volume typo
Eighth Issue of Second Volume
Ninth Issue of Second Volume
Ninth Issue of Second Volume missing parts added
Ninth Issue of Second Volume typo
Ninth Issue of Second Volume typo
Ninth Issue of Second Volume typo
Ninth Issue of Second Volume typo
Ninth Issue of Second Volume typo
Tenth Issue of Second Volume
Tenth Issue of Second Volume typo
Eleventh Issue of Second Volume
Eleventh Issue of Second Volume typo