[IDEA] Use with Tiddlywiki

Hi Terence,
Attached is a little modified SVG-Calendar code. It uses Tiddlywiki macro instead of JS.
So it can be called as a macro with different date value or use the today date using now macro!

To give a try, Download the attached zip and unzip it to its JSON file

1. Go to Tiddlywiki: https://tiddlywiki.com/prerelease/
2. Drag and drop the JSON file into Tiddlywiki
3. Click on Test to see the Test result

You should see something like

[svg-calendars-tones.zip](https://github.com/edent/Dynamic-SVG-Calendar-Icon/files/5600922/svg-calendars-tones.zip)

If you don't mind you can add this as an example of your wonderful svg calendar doc.