Broken link to truth info

[fellen31]

Description of the bug

https://nf-co.re/variantbenchmarking/truth is not working, linked in README.md, usage.md and truth.md.

Command used and terminal output

Relevant files

No response

System information

No response

[kubranarci]

That happen due to my assumption probably, I wanted to have a separate readme on truth files and though truth.md will be directly emitted from the web-site.. I will remove the link. Thank you!