diff --git a/README.md b/README.md
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+++ b/README.md
@@ -1,47 +1,21 @@
-# DODO：10x better liquidity than uniswap
+# DODOV2
 
-## What is DODO?
+## DVM
 
-✍️[Introducing DODO](https://medium.com/@dodo.in.the.zoo/introducing-dodo-10x-better-liquidity-than-uniswap-852ce2137c57)
+DVM 是 DODO Vending Machine的缩写，”自动售货机“
 
-- DODO is based on a brand new market maker algorithm with an essential idea of risk neutrality to keep liquidity providers’ portfolio stable.
-- Compared with AMMs, DODO will perform 10x better in liquidity.
+这一模式下
 
-## Who audit DODO?
+ 1. 参数i和k不变
+ 2. 任何人都能充值
+ 3. 第一次充值不需要按照比例，后续需要按照比例充值
 
-[PeckShield Inc.](https://peckshield.cn/en) is a leading blockchain security company with the goal of elevating the security, privacy, and usability of current blockchain ecosystems by offering top-notch, industry-leading services and products.
+## DPP
 
-You could find the audit report [here](https://raw.githubusercontent.com/DODOEX/dodo-smart-contract/master/audit/dodo_audit_report_2020_16_en_1.0.pdf)
+DPP 是 DODO Private Pool 的缩写，”私有池“
 
-## More details and deployment info
+这一模式下
 
-You could find all documents and info about DODO [here](https://dodoex.github.io/docs/docs)
-
-## Bug Bounty 💰
-
-### Rewards
-
-Severity of bugs will be assessed under the [CVSS Risk Rating](https://www.first.org/cvss/calculator/3.0) scale, as follows:
-
- - Critical (9.0-10.0): Up to $50,000
- - High (7.0-8.9): Up to $10,000
- - Medium (4.0-6.9): Up to $2,000
- - Low (0.1-3.9): Up to $1,000
-
-In addition to assessing severity, rewards will be considered based on the impact of the discovered vulnerability as well as the level of difficulty in discovering such vulnerability.
-
-### Disclosure
-
-Any vulnerability or bug discovered must be reported only to the following email: contact@dodoex.io; must not be disclosed publicly; must not be disclosed to any other person, entity or email address prior to disclosure to the contact@dodoex.io email; and must not be disclosed in any way other than to the contact@dodoex.io email. In addition, disclosure to contact@dodoex.io must be made promptly following discovery of the vulnerability. Please include as much information about the vulnerability as possible, including:
-
- - The conditions on which reproducing the bug is contingent.
- - The steps needed to reproduce the bug or, preferably, a proof of concept.
- - The potential implications of the vulnerability being abused.
- 
-A detailed report of a vulnerability increases the likelihood of a reward and may increase the reward amount.
-
-Anyone who reports a unique, previously-unreported vulnerability that results in a change to the code or a configuration change and who keeps such vulnerability confidential until it has been resolved by our engineers will be recognized publicly for their contribution, if agreed.
-
-## Contact Us
-
-Send E-mail to contact@dodoex.io
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+ 1. 参数i和k可以任意改变
+ 2. Target和reserve可以任意设置
+ 3. 只有creator可以充提，且充提不受限制
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