Updated minimum required Java version

mmallis87 · web-flow · commit 3fedb153f31e · 2020-07-02T01:04:50.000-07:00
diff --git a/README.md b/README.md
@@ -5,7 +5,7 @@
 
 ## Requirements
 
-- Java 1.7+
+- Java 1.9+
 - Free [Developer Sandbox](https://go.docusign.com/sandbox/productshot/?elqCampaignId=16531)
 
 ## Compatibility
