Create more interesting examples

[joshfarrant]

There's currently a single example Shortcut in the README, however it would be nice to have a few more examples showcasing what Shortcuts-js can do, as well as showing some of the more interesting/useful actions.

One of the benefits of building our Shortcuts with JS is that it's possible to create Shortcuts that would be hugely time-consuming or tedious to create with the drag-and-drop interface the Shortcuts app provides. It would be nice to have an example of this where a series of actions are generated using a loop, or extracted into their own function which can then be easily reused.

[joshfarrant]

A few more were have been added to the README, but the more examples the better really. Open to suggestions on interesting/useful examples, especially as more and more actions are made available.