Update Breadth-First-Search.md

Author: articuno12

md/Breadth-First-Search.md

@@ -2,7 +2,7 @@
 
 ## AIMA3e
 __function__ BREADTH-FIRST-SEARCH(_problem_) __returns__ a solution, or failure  
- _node_ ← a node with STATE = _problem_.INITIAL\-STATE, PATH\-COST = 0  
+ _node_ ← a node with STATE = _problem_.INITIAL\-STATE 
  __if__ _problem_.GOAL\-TEST(_node_.STATE) __then return__ SOLUTION(_node_)  
  _frontier_ ← a FIFO queue with _node_ as the only element  
  _explored_ ← an empty set