Fix link to Book's hygiene section

Closes #70.
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David Tolnay 2019-12-15 20:20:23 -08:00
parent 71323798b9
commit c805bb5dbb
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@ -158,7 +158,7 @@ fn f() -> i32 {
Refer to [The Book] for more on the considerations around macro hygiene.
[The Book]: https://doc.rust-lang.org/book/first-edition/macros.html#hygiene
[The Book]: https://doc.rust-lang.org/1.30.0/book/first-edition/macros.html#hygiene
<br>