Link to mremap man page

Author: sporksmith

src/sys/mman.rs

@@ -326,11 +326,13 @@ pub unsafe fn mmap(addr: *mut c_void, length: size_t, prot: ProtFlags, flags: Ma
     }
 }
 
-/// Expands (or shrinks) an existing memory mapping, potentially moving it at the same time.
+/// Expands (or shrinks) an existing memory mapping, potentially moving it at
+/// the same time.
 ///
 /// # Safety
 ///
-/// See the `mremap(2)` man page for detailed requirements.
+/// See the `mremap(2)` [man page](https://man7.org/linux/man-pages/man2/mremap.2.html) for
+/// detailed requirements.
 #[cfg(target_os = "linux")]
 pub unsafe fn mremap(
     addr: *mut c_void,