README.rdoc in enju_leaf-1.1.0.rc16 vs README.rdoc in enju_leaf-1.1.0.rc17

@@ -1,6 +1,6 @@
 = Next-L Enju Leaf
-{<img src="https://travis-ci.org/next-l/enju_leaf.png?branch=1.1" alt="Build Status" />}[https://travis-ci.org/next-l/enju_leaf]
+{<img src="https://travis-ci.org/next-l/enju_leaf.svg?branch=1.1" alt="Build Status" />}[https://travis-ci.org/next-l/enju_leaf]
 {<img src="https://coveralls.io/repos/next-l/enju_leaf/badge.png?branch=1.1" alt="Coverage Status" />}[https://coveralls.io/r/next-l/enju_leaf?branch=1.1]
 {<img src="https://hakiri.io/github/next-l/enju_leaf/1.1.svg" alt="security" />}[https://hakiri.io/github/next-l/enju_leaf/1.1]
 
 Next-L Enju Leaf は、{Project Next-L}[http://www.next-l.jp] で開発している図書館管理システムです。