Update README.md

takezoe · takezoe · commit 2bbc1f863a7c · 2018-03-27T01:44:00.000+09:00
diff --git a/README.md b/README.md
@@ -4,6 +4,7 @@ This is a GitBucket plug-in which provides code snippet repository like Gist.
 
 Plugin version | GitBucket version
 :--------------|:--------------------
+4.13.x         | 4.23.x -
 4.12.x         | 4.21.x -
 4.11.x         | 4.19.x -
 4.10.x         | 4.15.x - 4.18.x
