fixup!

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

examples/coap/src/oluru.rs

@@ -158,7 +158,7 @@ impl<T: PriorityLevel, const N: usize, const L: usize> OrderedPool<T, N, L> {
         None
     }
 
-    /// Insert an element.
+    /// Inserts an element.
     ///
     /// If the new element's priority is lower than the lowest in the queue, it is returned as an
     /// Err. Otherwise, the element is inserted, and any dropped lower priority element is