Starting point

Change-Id: I86dab2674688f6d818ce2fb0861ea893d6841df3
diff --git a/book.json b/book.json
new file mode 100644
index 0000000..abbf32f
--- /dev/null
+++ b/book.json
@@ -0,0 +1,4 @@
+{
+  "title": "XOS-TOSCA User Documentation",
+  "root": "./docs"
+}