fix(docs): Update Torin's link in differences with Dioxus

[tigerros]

The torin link was outdated. This updates it and also adds a permalink which will never "expire", unless the repository is deleted, or @marc2332 changes his name.

[marc2332]

Nice find, but it shouldn't point to an old version, it should just point to https://github.com/marc2332/freya/tree/main/crates/torin

[tigerros]

it should just point to https://github.com/marc2332/freya/tree/main/crates/torin

The files might get moved around or something and the link becomes invalid, that's why I thought a permalink would make sense. However, I noticed torin is already on crates.io, so I added a link to there instead of the permalink. Unless you change the name of the crate, it's not going to become invalid. Problem solved.

[codecov]

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (724e4e8) 52.62% compared to head (a8d2c63) 52.62%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #309   +/-   ##
=======================================
  Coverage   52.62%   52.62%           
=======================================
  Files         129      129           
  Lines       11216    11216           
=======================================
  Hits         5902     5902           
  Misses       5314     5314           

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