Review und and Update Timeline

[timmwille]

As we worked out the first version via #47 and you can see the result here:

https://www.asknet.community/#timeline

→ I think this is just a first edition so would be good to have a review and additional content there (we might also squeeze it a little more)

[timmwille]

@yara89 here as in #10 we need input from @intertwilight