Apply suggestions from code review

Co-authored-by: Francisco Aguirre <franciscoaguirreperez@gmail.com>

bridges/snowbridge/docs/v2.md

@@ -28,7 +28,7 @@ The fee amounts in this message should be high enough to enable dry-running, aft
 - Given source parachain $S$, with native token $S^{'}$ and the initial xcm $x_0$ to be executed on $S$.
 - The native currency $P^{'}$ of the Polkadot relay chain, and $E^{'}$ of Ethereum.
 - Suppose that the user agent chooses relayer reward $r$ in $E^{'}$.
-- Suppose that the exchange rates  $K_{P^{'}/S^{'}}$ and $K_{E^{'}/S^{'}}$. The user agent chooses a multiplier to $\beta$ to cover volatility in these rates.
+- Suppose that the exchange rates are $K_{P^{'}/S^{'}}$ and $K_{E^{'}/S^{'}}$. The user agent chooses a multiplier to $\beta$ to cover volatility in these rates.
 
 Apply the following sequence operations: