diff --git a/dist/demo/index.html b/dist/demo/index.html
index 382b1df0d..bb6bf5f8e 100644
--- a/dist/demo/index.html
+++ b/dist/demo/index.html
@@ -62,41 +62,41 @@ Add another diagram to demo page    : 48h
   <hr/>
 
   <div class="mermaid">
-gitGraph :
+gitGraph:
 options
 {
-    "nodeSpacing" : 150,
+    "nodeSpacing": 150,
     "nodeRadius": 10
 }
 end
-    commit
-    branch newbranch
-    checkout newbranch
-    commit
-    commit
-    checkout master
-    commit
-    commit
-    merge newbranch
+commit
+branch newbranch
+checkout newbranch
+commit
+commit
+checkout master
+commit
+commit
+merge newbranch
   </div>
 
   <hr/>
 
   <div class="mermaid">
 classDiagram
-    Class01 <|-- AveryLongClass : Cool
-    Class03 *-- Class04
-    Class05 o-- Class06
-    Class07 .. Class08
-    Class09 --> C2 : Where am i?
-    Class09 --* C3
-    Class09 --|> Class07
-    Class07 : equals()
-    Class07 : Object[] elementData
-    Class01 : size()
-    Class01 : int chimp
-    Class01 : int gorilla
-    Class08 <--> C2: Cool label
+Class01 <|-- AveryLongClass : Cool
+Class03 *-- Class04
+Class05 o-- Class06
+Class07 .. Class08
+Class09 --> C2 : Where am i?
+Class09 --* C3
+Class09 --|> Class07
+Class07 : equals()
+Class07 : Object[] elementData
+Class01 : size()
+Class01 : int chimp
+Class01 : int gorilla
+Class08 <--> C2: Cool label
   </div>
   <script src="../mermaid.js"></script>
   <script>
diff --git a/todo.md b/todo.md
index 958ed701e..dd0ac1175 100644
--- a/todo.md
+++ b/todo.md
@@ -16,3 +16,4 @@
 - How to generate doc?
 - webpack warning: lodash too big
 - add converalls
+- git graph requires a blank line at the end. why?