use 'out' instead of 'foo' for examples

Author: brean

examples/README.md

@@ -7,7 +7,7 @@ Create a map from an image and run a path finding algorithm on it. Requires: `pi
 You can run it with an input and output file like this:
 ```
 cd examples/image-simple/
-python3 image_pathfinding.py -i map.png -o foo.png
+python3 image_pathfinding.py -i map.png -o out.png
 ```
 
 ----
@@ -25,6 +25,6 @@ cd examples/image-weighted/
 python3 image_pathfinding.py -i map.png -o foo.png
 ```
 
-To add some randomization to the weights - you can use the `-r` flag: `python3 image_pathfinding.py -i map.png -o foo.png -r 0.5`
+To add some randomization to the weights - you can use the `-r` flag: `python3 image_pathfinding.py -i map.png -o out.png -r 0.5`
 
 Note: The terrain-map was generated with OpenSimplex-noise via [this Python script](https://github.com/O-X-L/opensimplex).