Improve replace_with_nodata docstring

Author: mipeso

eis_toolkit/utilities/nodata.py

@@ -113,12 +113,15 @@ def replace_with_nodata(
     """
     Replace pixels values with nodata for a raster.
 
+    Can be used either for replacing all pixels with certain value with nodata, or for replacing all pixels with
+    values less than, greater than, less than or equal to, or greater than or equal to the target value with nodata.
+
     Args:
         input_raster: Input raster dataset.
         target_value: Value to be replaced with nodata.
         nodata_value: Value that will be used as nodata. If not provided, nodata is determined from input raster.
-        replace_condition: Whether to replace certain value or values less than, greater than, less than or equal,
-            or greater than or equal to target_value with nodata.
+        replace_condition: Whether to replace pixels with certain value or values less than, greater than, less than or
+            equal, or greater than or equal to target_value with nodata.
 
     Returns:
         The input raster data with specified pixels replaced with nodata, and updated metadata.