Resolve "Introduce a new filter for when rules should be run based on the source ID of a building."

Closes #21 (closed)

\approve @laurens @ds @chengzhi

rulelib/abstractrule.py

@@ -30,7 +30,7 @@ class AbstractRule(abc.ABC):
 
     Args:
         rule_source_ids (list):
-            A list of all valid source IDs for the rule. This is provided by the rule's XML
+            A list of all valid source IDs for the rule. This is provided by the rule's XML file
             if relevant.
         geographic_filter_boundary (str):
             Boundary polygon in WKT format defining the geographic boundary of the rule.