Update generated feature docs

Author: aloucks

docs/user/generated_features.adoc

@@ -76,7 +76,7 @@ Navigates to the type of an identifier.
 
 
 === Hover
-**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/hover.rs#L63[hover.rs]
+**Source:** https://github.com/rust-analyzer/rust-analyzer/blob/master/crates/ra_ide/src/hover.rs#L58[hover.rs]
 
 Shows additional information, like type of an expression or documentation for definition when "focusing" code.
 Focusing is usually hovering with a mouse, but can also be triggered with a shortcut.