fix typo in docstring

include/evalhyd/evald.hpp

@@ -38,18 +38,16 @@ namespace evalhyd
     ///       Streamflow observations. Time steps with missing observations
     ///       must be assigned `NAN` values. Those time steps will be ignored
     ///       both in the observations and the predictions before the
-    ///       *metrics* are computed. Observations and predictions must be
-    ///       feature the same number of dimensions and they must be
-    ///       broadcastable.
+    ///       *metrics* are computed. Observations and predictions must feature
+    ///       the same number of dimensions and they must be broadcastable.
     ///       shape: ({... ,} time)
     ///
     ///    q_prd: ``xt::xexpression<A>``
     ///       Streamflow predictions. Time steps with missing predictions
     ///       must be assigned `NAN` values. Those time steps will be ignored
     ///       both in the observations and the predictions before the
-    ///       *metrics* are computed. Observations and predictions must be
-    ///       feature the same number of dimensions and they must be
-    ///       broadcastable.
+    ///       *metrics* are computed. Observations and predictions must feature
+    ///       the same number of dimensions and they must be broadcastable.
     ///       shape: ({... ,} time)
     ///
     ///    metrics: ``std::vector<std::string>``