fix(docs): typo in fassets core vault (#700)

Author: dineshpinto

docs/fassets/6-core-vault.mdx

@@ -46,7 +46,7 @@ This ensures redemption liquidity and protects the system from agent insolvency.
 ### Security Design
 
 Each asset type has a dedicated Core Vault, which is managed by a multisig contract under a formal agreement with Flare.
-The assets stored in the CV do not belong to any specific agent and can be can be requested to return to the agent's collateralized security.
+The assets stored in the CV do not belong to any specific agent and can be requested to return to the agent's collateralized security.
 To ensure security, governance has the authority to pause deposits and withdrawals if necessary, such as in the event of a system compromise.
 
 The Core Vault operates through a predefined address on the underlying chain and is managed via a multisig setup with smart contract oversight under formal Flare contracts.