diff --git a/docs/README.md b/docs/README.md
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+# Documents
+
+## Usage
+
+- Site: https://idrawjs.github.io/
+- Repos: https://github.com/idrawjs/docs
+
+## TODO List
+
+- https://github.com/idrawjs/idraw/issues/53
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diff --git a/docs/todo/board.md b/docs/todo/board.md
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-# @idraw/board
-
-* [x] Calculate screen position to context position
-* [x] Reset board's size
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diff --git a/docs/todo/core.md b/docs/todo/core.md
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-# @idraw/core
-
-* [] add type of TypeElemDesc-key
-* [x] BUG: Type error about keyof TypeElemDesc
-* [x] BUG: Type error about TypeElement'uuid
-* [] Element default data
-* [] Support gradient color
-* [] Listen keyboard action
-* [] Keep all num two decimals
-* [x] Config usage in all code
-* [x] is/check add circle and html
-* [x] make idraw.draw() private
-* [x] remove idraw.initData()
-* Support Element's render
-  * Circle
-    * [x] Render content
-  * Text
-    * [x] Desc backgroundColor
-  * HTML
-    * [x] Render content
-* [x] Change idraw.selectElementByUUID to idraw.selectElementByIndex
-* [x] Change idraw.selectElement use uuid arg
-* [x] License text in JS result
-* [x] Options default data
-* [x] BUG: Select area calculate elements error
-* [x] Move elements that in selected-area
-* [x] Area select
-* [x] Lock Element
-* [x] FireFox's Compatibility Question (And Safair Browser) 
-* [x] Hover element style
-* [x] Cursor style
-* [x] Can't controll element at scroll-area
-* [x] Disable controll element
-* [x] static check/is type declare
-* [x] Force update image/svg image when element change
-* [x] Reset board's size
-* [x] Limit element's angle between -360~360 deg
-* [x] Check if the element and elements' attribute of desc is supported
-* [x] Suport elements'desc and attribute check method
-* [x] Scale canvas
-* [x] Scroll canvas
-* [x] Render by requestAnimateFrame
-* [x] Image load queue
-* [x] Input data by `any` type `core.initData/core.setData`
-* Render data's elements
-  * Basic box
-    * [x] Border
-    * [x] Radius
-    * [] Gradient Color
-  * [x] Text
-    * [x] Text content
-    * [x] Font size
-    * [x] Font family
-    * [x] Font color
-  * Rect
-    * [x] Rect content
-  * Image
-    * [x] Image content
-  * [x] SVG
-    * [x] SVG content
-* [x] Drag elements
-* [x] Move elements' index
-* [x] Rotate elements
-* [x] Transform elements's size
-* [X] Loader update image/svg resource
-
diff --git a/docs/todo/idraw.md b/docs/todo/idraw.md
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-# idraw
-
-* [] BUG: iDraw.js can't render image on Mobile browser
-* [x] BUG: Undo/Redo need trigger "changeData" event
-* Export
-  * [] Export image
-  * [] Source file
-* Undo action record
-  * [x] Action records's stack
-  * [x] Return recors's count
-* Redo action record
-  * [x] Action records's stack
-  * [x] Return recors's count
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diff --git a/docs/usage/README.md b/docs/usage/README.md
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-# idraw
-
-// TODO
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