chore: README updated with example screenshots

Author: stilliard

README.md

@@ -2,3 +2,11 @@
 A collection of userscripts i use on github project boards to improve my workflow.
 
 Using https://tampermonkey.net/ in Chrome & Firefox to run these.
+
+See each js file for an info on it's use.
+
+Here's some examples of these in use:
+
+![Example of some changes such as column widths and card designs](./assets/column-widths-example.png)
+
+![Example of card focus](./assets/focus-clicked-card.png)