fixed Incorrectness in Documentation (#83)

Author: iamrajiv

pydatastructs/trees/space_partitioning_trees.py

@@ -122,7 +122,7 @@ def _iterate(self, calls, I, idx):
     def build(self):
         """
         Builds the segment tree from the segments,
-        using iterative algorithm based on stacks.
+        using iterative algorithm based on queues.
         """
         if self.cache:
             return None