Updated User patches (markdown)

User-patches.md

@@ -38,7 +38,9 @@ The following list will show available patches with their `name`; `function`; `c
 * [2-movable-not-movable.lua.txt](https://github.com/koreader/koreader/files/9854501/2-movable-not-movable.lua.txt); Disable floating window movement? #9646; download and remove the `.txt` extension.
 * [2-touchmenu-update-clock.lua](https://gist.github.com/zwim/40ab3866bee35f414feed95d1717e4c1); Enable updating clock and battery state in the touchmenu every minute; download.
 * [2-no-keyboard-shortcuts.lua](https://gist.github.com/zwim/e5f9a12922f645fdf390faaadfeb5ac7); Disable keyboard shortcuts on devices with keyboard (like the emulator); download.
-* [2-limit-crashlog-size.lua](https://gist.github.com/zwim/9896498977c8eeb679b516059e752de7); Limits the size of the `crash.log` file (if available on the platform), can be of interest when verbose debugging is enabled; download
+* [2-limit-crashlog-size.lua](https://gist.github.com/zwim/9896498977c8eeb679b516059e752de7); Limits the size of the `crash.log` file (if available on the platform), can be of interest when verbose debugging is enabled; download.
+* [2-custom-sort.lua](https://gist.github.com/wfdewith/978e4f8e09f481a480cb1bf645e8d518); An example of what you can do with custom file sorting algorithms; download.
+
 ## Device specific
 
 ### Kobo