Fix issue where closest word was not correctly chosen

distances.py

@@ -53,7 +53,7 @@ class Robustness:
 				if dist < lowest_distance:
 					lowest_distance = dist
 					lowest_index = j
-			self.swap(i, j)
+			self.swap(i, lowest_index)
 			after = time.time()
 			print("Found the %dth closest word in %d seconds" % (i, after-before))
 			yield self.l[i]