Documents/CodeOfConduct/CodingAndDocumentation.md: Additional typo. Please also correct the word "suppressoin"
Documents/CodeOfConduct/README.md: Please remove the mention of the quality manegement system here: "We take the freedom to change this code of conduct or quality management system whenever ..."
Documents/Contributing.md: Please undelete the paragraph "We have a modest code of conduct defining some aspects of the development process. Please have a look at this document to check if you find this appropriate for you. If not, don't hesitate do suggest improvements!"