Update docs/zkEVM/architecture/effective-gas/user-tx-flow/index.md

Co-authored-by: hsutaiyu <51791408+hsutaiyu@users.noreply.github.com>

Author: EmpieichO

docs/zkEVM/architecture/effective-gas/user-tx-flow/index.md

@@ -1,6 +1,6 @@
 Next, we provide a concise description of Polygon zkEVM's approach to calculating the effective gas price.
 
-It's an overview of the end-to-end flow of transactions, from when users sign transactions and submit them at the RPC level, to when the sequencer executes them.
+It's an overview of the end-to-end flow of transactions, commencing from users signing transactions and submitting them at the RPC level, to when the sequencer executes them.
 
 It's a quicker way to go through all involved formulas or criteria, but without explanatory examples.