Rust code in doc: false positive

[vepain]

First, thank you for your amazing work!

Is your feature request related to a problem? Please describe.
In Rust, you can put code in method-documentation such that this code is checked.
Because this code in markdown format

/// Blabla
///
/// # Examples
///
/// ```
/// # let my_var = 1; // you can hide code lines from doc, there are still checked
/// assert_eq!(my_var, 1);
/// ```
pub fn my_func() { }

ltex will check the code part in the documentation as natural-language, and thus produces false positives.

Describe the solution you'd like

• The code under markdown code part in Rust documentation should not be checked
• The comments in codes that are under markdown code part in Rust documentation should be checked

Describe alternatives you've considered
Just ignore markdown code part in Rust documentation, but we will face a false negative issue.

Additional context

• The comment in Rust can be //, ///, ///, //! (https://doc.rust-lang.org/reference/comments.html)
• In Rust documenation, in Markdown code part, # sign just hide code line from the doc, but it is still checked code (https://doc.rust-lang.org/rustdoc/write-documentation/what-to-include.html#examples)