Minor fix in entering-staking.adoc

Author: LandauRaz

components/Starknet/modules/staking/pages/entering-staking.adoc

@@ -38,7 +38,6 @@ For validators who wish to use a secure hardware wallet, the https://www.ledger.
 * In *`spender`*, enter the xref:overview.adoc#staking_contract[staking contract's address].
 * In *`amount`*, enter the number of STRK tokens you want to stake (note the xref:overview.adoc#economic_parameters[minimum stake for validators] and that STRK has 18 decimals).
 .. Submit the transaction to execute the approval.
-.. Submit the transaction to execute the approval.
 . Using a Starknet block explorer such as https://starkscan.co[Starkscan] or https://voyager.online[Voyager], navigate to the staking contract by searching for xref:overview.adoc#staking_contract[its address].
 . In the contract interface, locate and select the `stake` function.
 . Enter the following parameters: