fix(docs): correct wording for Core Vault integration with FAssets

Author: fassko

docs/fassets/6-core-vault.mdx

@@ -34,7 +34,7 @@ The Core Vault is:
 - Designed to operate with **manual, auditable, and time-bounded signing routines**
 - Supported by **escrow-based fund throttling** to mitigate security risk
 
-FAsset users don't need to take any action to benefit from CV — it automatically integrates with FXRP and other v1 tokens.
+FAsset users don't need to take any action to benefit from the CV — it automatically integrates with FXRP and other v1 tokens.
 
 ## Key Features