Update README.md

Author: fluentfuture

README.md

@@ -23,9 +23,11 @@ A small Java 8+ utilities library ([javadoc](http://google.github.io/mug/apidocs
   → `BinarySearch.inSortedArrayWithTolerance(doubleArray, 0.0001).find(target)`
 - [`StructuredConcurrency`](./mug/src/main/java/com/google/mu/util/concurrent/README.md)  
   → `concurrently(() -> fetchArm(), () -> fetchLeg(), (arm, leg) -> makeRobot(arm, leg))`
-- [`Iteration`](https://github.com/google/mug/wiki/Iteration-Explained)
 - [`MoreStreams`](https://google.github.io/mug/apidocs/com/google/mu/util/stream/MoreStreams.html)  
   → `whileNotNull(queue::poll).filter(...).map(...)`
+- [`MoreStreams`](https://google.github.io/mug/apidocs/com/google/mu/util/Optionals.html)  
+  → `return optionally(obj.hasFoo(), obj::getFoo);`
+- [`Iteration`](https://github.com/google/mug/wiki/Iteration-Explained)
 
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