fixup!

Co-authored-by: ROMemories <[email protected]>

examples/coap/src/oluru.rs

@@ -28,7 +28,7 @@ pub trait PriorityLevel {
     /// that.
     ///
     /// The level should not change due to global effects (or internal mutability, if shared access
-    /// is later implemented). If it does, the ordering of a OrderedPool containing it may become
+    /// is later implemented). If it does, the ordering of an [`OrderedPool`] containing it may become
     /// arbitrary, even after the elemnt whose level changed has been removed.
     fn level(&self) -> usize;
 }