[Doc] Add RRSpatialLookup class to api doc

tangxifan · tangxifan · commit 64645987673e · 2021-08-31T16:29:04.000-07:00
diff --git a/doc/src/api/vpr/rr_graph.rst b/doc/src/api/vpr/rr_graph.rst
@@ -23,3 +23,7 @@ RRSpatialLookup
    :project: vpr
    :sections: detaileddescription
 
+.. doxygenclass:: RRSpatialLookup
+   :project: vpr
+   :members:
+
