Update cross-site frame counting real world example section with a new patched bug on GitHub

[mr-medi]

Hi,

I've made an update to the frame-counting.md file, adding a new example that discusses a blog post I recently published. The example illustrates how cross-site frame counting can potentially expose private repositories on GitHub. I'm excited about the opportunity to contribute to your repository, especially since I've gained valuable insights from it.

Thank you for your dedicated work!

[NDevTK]

is exposing private repositories on GitHub limited to checking if a file exists not the file contents?
they did not add COOP :(

[mr-medi]

Hi @NDevTK,

Yeah, in this specific scenario, it's only possible to expose the name of private repositories and the names of the files associated with them. Using cross-site frame counting, it's not possible to expose the full content of the files or any specific section of the content in this context.

Thank you for your reply :)

[terjanq]

Thanks for the contribution! Even though it's a small change to the wiki, feel free to add yourself to contributors https://xsleaks.dev/docs/contributions/

[mr-medi]

Thank you very much, @terjanq, for accepting my pull request. I will add a new commit that includes me in the list of contributors, and I look forward to continuing to contribute in the future.

I've noticed that there seems to be an error <failed to extract shortcode: shortcode "hint" must be closed or self-closed> when rendering the file /contributions/_index.md:49:1. This error seems to occurs due to a tag in Hugo during the checks that run when a PR is being merged and it failed to merge the changes. I've read the code, and all the hints tags appear to be correctly declared.

Do you have any insights on what might be causing this issue?