update src/privacy.md

See merge request !116

update src/imprint.md

See merge request !115

update src/about.md

See merge request !114

update src/project.md

See merge request !113

fix: url spelling correction.

See merge request !112

* content-editing:
  Update src/syriacranslation.md
  Update src/index.md

closes #140

closes #139

* content-editing:
  Update src/stemmata.md, src/proverbs.md, src/sayings.md, src/syriacranslation.md, src/arabictranslation.md, src/editionguidelines.md files
  Update src/index.md

Update src/stemmata.md, src/proverbs.md, src/sayings.md, src/syriacranslation.md, src/arabictranslation.md, src/editionguidelines.md files

* content-editing:
  Update src/relatedliterature.md