Merge branch 'docs' into 'main'

.gitignore

docs/_bib/biblio.bib

docs/_content/_template.tex

docs/_content/anhang.tex

docs/_content/einleitung.tex

docs/_content/fazit.tex

docs/_content/module.tex

docs/_img/KDFChain.png

docs/_img/Logo_IMS.pdf

docs/_img/Middleware.svg

docs/_img/SignalCaptcha.png

docs/_img/SignalCaptchaToken.png

docs/_img/X3DH.png

docs/_img/bologo_hd.pdf

docs/_img/doubleRatchetDHRatchetSet2_1.png

docs/_img/doubleRatchetSet3_2.png

docs/_img/doubleRatchetSet3_3.png

docs/_img/freegames.png

docs/_img/gn.png

docs/_img/konzept_service.pdf