Fix some documentation issues.

src/lib.rs

@@ -2,6 +2,9 @@
 #![cfg_attr(all(feature = "use_alloc", not(feature = "use_std")), feature(alloc))]
 #![cfg_attr(all(feature = "use_collections", not(feature = "use_std")), feature(collections))]
 
+//! A library that provides a way to logically own objects, whether or not
+//! heap allocation is available.
+
 #[cfg(feature = "use_std")]
 extern crate std;
 #[cfg(all(feature = "use_alloc", not(feature = "use_std")))]

src/object.rs

@@ -27,7 +27,7 @@ use collections::vec::Vec;
 ///
 /// Note that a `Vec<T>` converted into an `Into<Managed<'static, [T]>>` gets transformed
 /// into a boxed slice, and can no longer be resized. See also
-/// [ManagedSlice][struct.ManagedSlice.html], which does not have this drawback.
+/// [ManagedSlice](enum.ManagedSlice.html), which does not have this drawback.
 pub enum Managed<'a, T: 'a + ?Sized> {
     /// Borrowed variant.
     Borrowed(&'a mut T),

src/slice.rs

@@ -21,7 +21,7 @@ use collections::vec::Vec;
 /// argument; then, it will be possible to pass either a `Vec<T>`, or a `&'a mut [T]`
 /// without any conversion at the call site.
 ///
-/// See also [Managed][struct.Managed.html].
+/// See also [Managed](enum.Managed.html).
 pub enum ManagedSlice<'a, T: 'a> {
     /// Borrowed variant.
     Borrowed(&'a mut [T]),