Merge #63

63: Fix unescaped "[]"s in doc comment r=Disasm a=longfangsong

When running `cargo doc` on this crate and crates depends on this crate, cargo will always raise `unresolved link` warnings for those `[h]` and `[x]`, which is annoying.

This pr escaped the `[` and `]` in these code to silence these warning.

Co-authored-by: longfangsong <longfangsong@icloud.com>