Opt in to generate-link-to-definition when building on docs.rs

Author: dtolnay

Cargo.toml

@@ -23,4 +23,4 @@ doc-scrape-examples = false
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
-rustdoc-args = ["--cfg", "doc_cfg"]
+rustdoc-args = ["--cfg", "doc_cfg", "--generate-link-to-definition"]