Suppress doc_markdown clippy pedantic lint

    error: item in documentation is missing backticks
       --> src/lib.rs:108:57
        |
    108 |     /// "inf", and negative infinity as "-inf" to match std::fmt.
        |                                                         ^^^^^^^^
        |
        = note: `-D clippy::doc-markdown` implied by `-D clippy::pedantic`
        = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#doc_markdown
    help: try
        |
    108 |     /// "inf", and negative infinity as "-inf" to match `std::fmt`.
        |                                                         ~~~~~~~~~~

src/lib.rs

@@ -36,6 +36,7 @@
 #![allow(
     clippy::cast_lossless,
     clippy::cast_possible_truncation,
+    clippy::doc_markdown,
     clippy::if_not_else,
     clippy::missing_errors_doc,
     clippy::must_use_candidate,