Update README for Java 11 (#3464)

joshfischer1108 · web-flow · commit 1c59862f3ff3 · 2020-02-21T00:01:01.000-05:00
diff --git a/README.md b/README.md
@@ -29,7 +29,7 @@ Heron is realtime analytics platform developed by Twitter.  It has a wide array
 [https://heron.incubator.apache.org/](https://heron.incubator.apache.org/)
 
 #### Heron Requirements:
- * Java JDK 1.8
+ * Java 11
  * Python 3
  * Bazel 0.26.0
 
