diff --git a/docs/transaction-processing.md b/docs/transaction-processing.md
index b3e7161..b3009cb 100644
--- a/docs/transaction-processing.md
+++ b/docs/transaction-processing.md
@@ -4,7 +4,7 @@
 
 ## Atomicity
 
-When an application server linking with the 0G Storage key-value runtime starts a transaction using `BeginTx()` interface, it notifies the runtime that the transaction will work on the current state snapshot constructed by playing the log to the current tail. The further key-value operations before the invocation of `EndTx()` updates the key-values locally in the server without exposing the updates to the log. When `EndTx()` is invoked, the runtime composes a commit record containing the log position the transaction starts from and the read-write set of the transaction. This commit record is then appended to the log.
+When an application server linking with the 0G Storage key-value runtime starts a transaction using `BeginTx()` interface, it notifies the runtime that the transaction will work on the current state snapshot constructed by playing the log to the current tail. The further key-value operations before the invocation of `EndTx()` update the key-values locally in the server without exposing the updates to the log. When `EndTx()` is invoked, the runtime composes a commit record containing the log position the transaction starts from and the read-write set of the transaction. This commit record is then appended to the log.
 
 When an application server with the key-value runtime encounters the commit record during playing the log, it identifies a conflict window consisting of all the log entries between the start log position of the transaction and the position of the commit record. The log entries in the conflict window therefore contain the key-value operations concurrent with the transaction submitting the commit record. The runtime further detects whether these concurrent operations contain the updates on the keys belonging to the read set of the transaction. If yes, the transaction is aborted, otherwise committed successfully.