Bump version to 2.3.1 in the changelog file

Enrico Usai · enrico-usai · commit 592d0bbc7e7a · 2019-04-01T18:10:01.000+02:00
Signed-off-by: Enrico Usai &lt;usai@amazon.com&gt;
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -3,7 +3,7 @@ aws-parallelcluster-cookbook CHANGELOG
 
 This file is used to list changes made in each version of the AWS ParallelCluster cookbook.
 
-2.3.0
+2.3.1
 -----
 
 **ENHANCEMENTS**
