Change "main" to cjs instead

[traeblain]

I'm pretty sure only node needs the "main" term for the understanding of how the module is loaded. Everything else will use the js and min.js through direct pointers. As is, after doing an npm install temml, you cannot use the package in node because it wants to look at temml.js and exports an empty object.

[ronkok]

Well, my intent was to enable a web page to load Temml via jsDelivr. That's why main points to a file in iife format.

I certainly do want to accommodate people using node.js, but they can do that now by forking the Github repository.

I'm open to other suggestions so long as they do not interfere with the jsDelivr capability.

[traeblain]

Found the answer so that it will work with both. Adding a new patch now.

[ronkok]

Not used in favor of #15.