Update develop/toolkit/integrations/transaction-construction.md

Co-authored-by: Taylor Lucero <[email protected]>

Author: brunopgalvao

develop/toolkit/integrations/transaction-construction.md

@@ -23,7 +23,7 @@ Polkadot has some basic transaction information that is common to all transactio
 - **Genesis hash**: The genesis hash of the chain.
 - **Metadata**: The [SCALE-encoded](/polkadot-protocol/parachain-basics/data-encoding/){target=\_blank} metadata for the runtime when submitted.
 - **Nonce**: The nonce for this transaction.
-- **Spec Version**: The current spec version for the runtime.
+- **Spec version**: The current spec version for the runtime.
 - **Transaction Version**: The current version for transaction format.
 - **Tip**: Optional, the [tip](/polkadot-protocol/parachain-basics/blocks-transactions-fees/fees/#how-fees-are-calculated){target=\_blank} to increase transaction priority.
 - **Mode**: The flag indicating whether to verify the metadata hash or not.