Set html_root_url

Author: dtolnay

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "proc-macro2"
-version = "0.1.10"
+version = "0.1.10" # remember to update html_root_url
 authors = ["Alex Crichton <alex@alexcrichton.com>"]
 license = "MIT/Apache-2.0"
 readme = "README.md"

src/lib.rs

@@ -19,6 +19,9 @@
 //! This'll allow immediate usage of the beneficial upstream API, particularly
 //! around preserving span information.
 
+// Proc-macro2 types in rustdoc of other crates get linked to here.
+#![doc(html_root_url = "https://docs.rs/proc-macro2/0.1.10")]
+
 #![cfg_attr(feature = "nightly", feature(proc_macro))]
 
 extern crate proc_macro;