Update README.md

Author: ss892714028

README.md

@@ -16,13 +16,13 @@
 
 ### Breadth First Search
 Breadth First Search is unweighted and guarantee a optimal path.
-![](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/bfs.gif)
+![BFS](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/bfs.gif)
 
 ### Depth First Search
 Depth First Search is unweighted and does not guarantee a optimal path.
-![](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/dfs-nonoptimal.gif)
+![DFS](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/dfs-nonoptimal.gif)
 
 ### Astar (A*)
 A* is weighted and guarantee a optimal path.                                                         
-![](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/astar_ez.gif)
-
+![A* easy](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/astar_ez.gif)
+![A*](https://github.com/ss892714028/Maze-PathFinder-Visualization-Python/blob/master/gifs/astar.gif)