Fix typo in rustdoc comment for InTransactionPostgresBackend
@@ -86,7 +86,7 @@ impl From<Pool<ConnectionManager<diesel::pg::PgConnection>>> for PostgresBackend
/// A borrowed Postgres connection.
///
-/// Available if the features "state-merkle-sql-in-transaction" "postgres" are enabled.
+/// Available if the features "state-merkle-sql-in-transaction" and "postgres" are enabled.
#[cfg(feature = "state-merkle-sql-in-transaction")]
pub struct BorrowedPostgresConnection<'a>(&'a diesel::pg::PgConnection);
@@ -103,7 +103,7 @@ impl<'a> Connection for BorrowedPostgresConnection<'a> {
///
/// This backend is neither `Sync` nor `Send`.
///
-/// Available if the features "state-merkle-sql-in-transaction" "postgres" are enabled.
+/// Available if the features "state-merkle-sql-in-transaction" and "postgres" are enabled.
#[cfg(feature = "state-merkle-sql-in-transaction")]
pub struct InTransactionPostgresBackend<'a> {
connection: &'a diesel::pg::PgConnection,
