update align

Author: smathermather

source/arguments/align.rst

@@ -12,7 +12,7 @@ align
 
 Path to a GeoTIFF DEM or a LAS/LAZ point cloud that the reconstruction outputs should be automatically aligned to. Experimental. Default: ``None``
 
-
+Uses [CODEM](https://github.com/NCALM-UH/CODEM, credits to Craig Glennie and the group at CRREL). The details of the method are available at https://github.com/NCALM-UH/CODEM/blob/main/docs/details.md.
 
 
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