Update README.md

johnA1331 · web-flow · commit 523d9f871535 · 2021-09-15T22:03:24.000+08:00
diff --git a/core-java-modules/core-java-16/README.md b/core-java-modules/core-java-16/README.md
@@ -1,3 +1,4 @@
 ### Relevant articles:
 
 - [Collect a Java Stream to an Immutable Collection](https://www.baeldung.com/java-stream-immutable-collection)
+- [Guide to mapMulti in Stream API](https://www.baeldung.com/java-mapmulti)

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
`1`	`1`	`### Relevant articles:`
`2`	`2`
`3`	`3`	`- [Collect a Java Stream to an Immutable Collection](https://www.baeldung.com/java-stream-immutable-collection)`
	`4`	`+- [Guide to mapMulti in Stream API](https://www.baeldung.com/java-mapmulti)`