Fix broken link in Transaction docs
@@ -46,7 +46,7 @@ pub trait TransactionManager {
/// executed after it was established to be rolled back, restoring the transaction state to
/// what it was at the time of the savepoint.
///
-/// [`Connection::begin`]: struct.Connection.html#method.begin
+/// [`Connection::begin`]: trait.Connection.html#tymethod.begin
/// [`Pool::begin`]: struct.Pool.html#method.begin
/// [`commit`]: #method.commit
/// [`rollback`]: #method.rollback
