README: Add cookbook section

README.md

@@ -71,6 +71,22 @@ Users who have sh (Bash works too) installed can use the `maze` wrapper script i
 ./maze maze -w 25 -h 25
 ```
 
+### Cookbook
+
+#### Make an (almost) seamless texture
+```
+./maze maze_svg --scale 40 -w 31 -h 31 -f maze.svg
+inkscape -o maze.png maze.svg
+convert maze.png -crop 1080x1080+80+80 extract.png
+```
+
+The formula here for the crop is:
+
+ - **width:** w * scale - (scale * 4)
+ - **height:** h * scale - (scale * 4)
+ - **x offset:** scale * 2
+ - **y offset:** scale * 2
+
 ![(Horizontal line)](https://starbeamrainbowlabs.com/blog/images/20200831-mazes/hr.png)
 
 ## Contributing