Update bopdmd.py

Moved the comment above the changed code line to adhere to Codacy Static Code Analysis for PR

Author: Bucanero06

pydmd/bopdmd.py

@@ -1368,7 +1368,8 @@ def _initialize_alpha(self):
         # Define the matrices Y and Z as the following and compute the
         # rank-truncated SVD of Y.
         Y = (ux1 + ux2) / 2
-        Z = (ux2 - ux1) / (self._time[1:] - self._time[:-1])  # Element-wise division by time differences. w/o large T
+        # Element-wise division by time differences. w/o large T
+        Z = (ux2 - ux1) / (self._time[1:] - self._time[:-1])  
         U, s, V = compute_svd(Y, self._svd_rank)
         S = np.diag(s)