doc: Update JDK requirement of the dashboard in README.md (alibaba#1316)

* Following discussions in alibaba#1315
hughpearse · Mar 9, 2020 · 2785a60 · 2785a60
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commit 2785a60
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -47,7 +47,7 @@ Below is a simple demo that guides new users to use Sentinel in just 3 steps. It
 
 ### 1. Add Dependency
 
-**Note:** Sentinel requires Java 7 or later.
+**Note:** Sentinel requires Java 7 or later. Java 8 is required if building the whole project or the dashboard.
 
 If your application is build in Maven, just add the following dependency in `pom.xml`.