diff --git a/docs/Changelog.md b/docs/Changelog.md
index d0076073..9f08b682 100644
--- a/docs/Changelog.md
+++ b/docs/Changelog.md
@@ -3,7 +3,7 @@
 ## JS SDK Version ChangeLog
 #### v3.6.0
     1) dual Invest autoReinvest
-    2) guardina singature typeData
+    2) guardina signature typeData
     3) remove signature 02/03 ended
 
 #### v3.2.1
diff --git a/docs/js_sdk/Deposit.md b/docs/js_sdk/Deposit.md
index 54f06533..36ba01b0 100644
--- a/docs/js_sdk/Deposit.md
+++ b/docs/js_sdk/Deposit.md
@@ -47,7 +47,7 @@ Choose deposit amount from UI
 
 ```ts
 const { ethBalance } = await LoopringAPI.exchangeAPI.getEthBalances({owner: accAddress});
-//tokenArr is Loopring supprot ERC20 TokenId Array.jion(',')
+//tokenArr is Loopring support ERC20 TokenId Array.jion(',')
 const { tokenBalances } = await LoopringAPI.exchangeAPI.getTokenBalances({owner: accAddress, token: tokenArr.join()})
 ```
 API: [/api/v3/eth/tokenBalances](https://uat2.loopring.io/api/v3/eth/tokenBalances?owner=0xfF7d59D9316EBA168837E3eF924BCDFd64b237D8&token=0xfc28028d9b1f6966fe74710653232972f50673be%2C0x0000000000000000000000000000000000000000%2C0xd4e71c4bb48850f5971ce40aa428b09f242d3e8a%2C0xcd2c81b322a5b530b5fa3432e57da6803b0317f7%2C0x47525e6a5def04c9a56706e93f54cc70c2e8f165)
@@ -249,7 +249,7 @@ web3.eth.sendTransaction({
   const tokenSymbol = "LRC";
   const fee = 0;
   /* tokenSymbol is ETH, sendTransaction value should be `amount + fee` (current fee is 0)
-   * other tokenSymbol as LRC addresss valueC is fee (current fee is 0)
+   * other tokenSymbol as LRC address valueC is fee (current fee is 0)
    */
   const value = tokenSymbol === "ETH"? amount + fee : fee;
   const data = genExchangeData(ERC20Method.Deposit, {
diff --git a/docs/js_sdk/erc20Trade/orderERC20.md b/docs/js_sdk/erc20Trade/orderERC20.md
index bcc9583f..7899e6a7 100644
--- a/docs/js_sdk/erc20Trade/orderERC20.md
+++ b/docs/js_sdk/erc20Trade/orderERC20.md
@@ -20,29 +20,29 @@ The parameters to call this interface are "accountId" and "market=LRC-ETH". In t
 
 **4) Set slippage as the slippage value user configured in UI (for example 0.1%)**
 
-**5）Caculate minCostLRC and minCostETH as below**
+**5）Calculate minCostLRC and minCostETH as below**
 
     minCostLRC = max(minTokenLRC, tradeCostLRC/maxAllowBips)
     minCostETH = max(minTokenETH, tradeCostETH/maxAllowBips)
 
-**6) Caculate the cost by considering slippage**
+**6) Calculate the cost by considering slippage**
 
     minCostLRCSlip = minCostLRC/(1-slippage)
     minCostETHSlip = minCostETH/(1-slippage)
 
 
-**7) Cacluate the minimum quantity user has to set**
+**7) Calculate the minimum quantity user has to set**
 
     tradeCostSellLRC = max(tradeCostSellLRC, minTokenLRC) * 1.1
     tradeCostSellETH = max(tradeCostSellETH, minTokenETH) * 1.1
-Here we add additonally 10% tolerance.
+Here we add additionally 10% tolerance.
 
-**8) Caculate the previous minimum token amount per calling api/v3/user/orderUserRateAmount (existing logic)**
+**8) Calculate the previous minimum token amount per calling api/v3/user/orderUserRateAmount (existing logic)**
 
 This is the threshold to distinguish small quantity trading and normal trading  
-We will get two values (configSellLRC and configSellETH) which are used for previous trading quantity limit (Per USD 100) caculation
+We will get two values (configSellLRC and configSellETH) which are used for previous trading quantity limit (Per USD 100) calculation
 
-**9）Caculate the new maxFeeBips and start trading**
+**9）Calculate the new maxFeeBips and start trading**
 
 Let's take LRC->ETH as the example
 User inputs the amount of LRC to convert, amount = sellLRC
@@ -728,7 +728,7 @@ const [{depth}, {ammPoolSnapshot}] = await Promise.all([
 ]);
 ```
 
-### Step  5. check MinAmt see log and calc mini receive and ouput value & maxfeeBips & priceImpact
+### Step  5. check MinAmt see log and calc mini receive and output value & maxfeeBips & priceImpact
 
 ```ts
 const { calcTradeParams, maxFeeBips, minimumReceived } = calculateSwap(