Update preprocess.rst

ni1o1 · Apr 5, 2022 · 66c974b · 66c974b
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commit 66c974b
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diff --git a/docs/source/preprocess.rst b/docs/source/preprocess.rst
@@ -8,7 +8,7 @@ Preprocess
 Building preprocess
 =============================
 
-bd_preprocess(buildings):
+.. function:: pybdshadow.bd_preprocess(buildings)
 
 Preprocess building data, so that we can perform shadow calculation.
 Remove empty polygons and convert multipolygons into polygons.