Update polkadot-protocol/parachain-basics/accounts.md

Co-authored-by: Copilot <[email protected]>

Author: eshaben

polkadot-protocol/parachain-basics/accounts.md

@@ -34,7 +34,7 @@ The `StorageMap` consists of the following parameters:
 - **`T: :AccountId`**: Represents the key type, which corresponds to the account’s unique ID.
 - **`AccountInfo<T: :Nonce, T::AccountData>`**: The value type stored in the map. For each account ID, the map stores an `AccountInfo` struct containing:
 
-    - **`T: :Nonce`**: A nonce for the account, which is incremented with each transaction to ensure transaction uniqueness.
+    - **`T::Nonce`**: A nonce for the account, which is incremented with each transaction to ensure transaction uniqueness.
     - **`T: :AccountData`**: Custom account data defined by the runtime configuration, which could include balances, locked funds, or other relevant information.
 
 - **`ValueQuery`**: Defines how queries to the storage map behave when no value is found; returns a default value instead of `None`.