properly import other files in gitbook (fix #971)

fnlctrl · fnlctrl · commit 18027f520a92 · 2016-12-02T20:19:30.000+08:00
reference: http://toolchain.gitbook.com/templating/conrefs.html
diff --git a/docs/en/README.md b/docs/en/README.md
@@ -1 +1 @@
-SUMMARY.md
+{% include "./SUMMARY.md" %}
diff --git a/docs/ja/README.md b/docs/ja/README.md
@@ -1 +1 @@
-SUMMARY.md
+{% include "./SUMMARY.md" %}
diff --git a/docs/zh-cn/README.md b/docs/zh-cn/README.md
@@ -1 +1 @@
-SUMMARY.md
+{% include "./SUMMARY.md" %}
