rustdoc ui: strikethrough doesn't show up in summary

[lukas-code]

I tried this code:

/// ~~strike~~
pub fn strike() {}

I expected to see this happen:

Instead, this happened:

Meta

rustc --version --verbose:

rustc 1.71.0-nightly (521f4dae1 2023-05-19)
binary: rustc
commit-hash: 521f4dae1bdf7fe9cf9436ecef9ee7c7442708bf
commit-date: 2023-05-19
host: x86_64-unknown-linux-gnu
release: 1.71.0-nightly
LLVM version: 16.0.4

Backtrace

no

@rustbot label T-rustdoc A-rustdoc-ui

[lukas-code]

@rustbot claim