…fmease

Add another example for escaped `#` character in doctest in rustdoc book

Fixes rust-lang#118027.

We don't plan to add a way to not escape the first `#`, so at least we add a more complete example in the rustdoc book with a macro making use of that.

…fmease

Add another example for escaped `#` character in doctest in rustdoc book

Fixes rust-lang#118027.

We don't plan to add a way to not escape the first `#`, so at least we add a more complete example in the rustdoc book with a macro making use of that.

Rollup of 9 pull requests

Successful merges:

 - #144761 (aarch64: Make `outline-atomics` a known target feature)
 - #144949 (More `Printer` cleanups)
 - #144955 (search graph: lazily update parent goals)
 - #144962 (Add aarch64_be-unknown-none-softfloat target)
 - #145153 (Handle macros with multiple kinds, and improve errors)
 - #145241 ([AVR] Changed data_layout)
 - #145341 (Install libgccjit into the compiler's sysroot when cg_gcc is enabled)
 - #145349 (Correctly handle when there are no unstable items in the documented crate)
 - #145356 (Add another example for escaped `#` character in doctest in rustdoc book)

r? `@ghost`
`@rustbot` modify labels: rollup

Rollup merge of #145356 - GuillaumeGomez:doctest-escaped, r=fmease

Add another example for escaped `#` character in doctest in rustdoc book

Fixes #118027.

We don't plan to add a way to not escape the first `#`, so at least we add a more complete example in the rustdoc book with a macro making use of that.