Update docs/sdk-book/src/concepts/README.md

Co-authored-by: Francisco Aguirre <[email protected]>

Author: mudigal

docs/sdk-book/src/concepts/README.md

@@ -4,7 +4,7 @@ To effectively use the SDKs, it's helpful to understand a few underlying concept
 
 ## The "Authorize -> Store" Flow
 
-To prevent spam and manage state growth, Bulletin Chain requires a two-step process for storing data:
+To prevent spam and manage storage growth, Bulletin Chain requires a two-step process for storing data:
 
 1.  **Authorize**: A user reserves space on the chain. This costs tokens (fees) based on the size of the data and the number of transactions required.
 2.  **Store**: The user (or anyone with the data) uploads the actual data. This transaction is free (or very cheap) because the space was already paid for.