Changed Instructions for Installation

[Max-Austin]

I was installing your source code and noticed the instructions were a little difficult to follow so I made a few changes to them and hope to help out on this project in other ways later on

[oskay]

I appreciate the effort and PR, but I'm afraid that the description Open Zip file and place contents in "Processing/library" may not be sufficiently clear.

The previous instructions, telling you simply to "install" the library were intentionally vague, essentially requiring one to look up the procedure. If you want to give specific instructions that's fine, but you'll need to be absolutely explicit about where to find the Processing directory that you mention.

A much better way to update these instructions would be to update them fully, to the new way of installing a library:

• Select from the menu Sketch > Import Library... > Add Library ...
• In the dialog box there, type "Ani" in the search box
• Ani | A lightweight library for creating animations and transitions from the list there
• Click the "Install" button