v4.4.1 Release is missing the asketch2sketch plugin asset file
I noticed that prior releases contain an asset for `asketch2sketch`. For example:

![image](https://user-images.githubusercontent.com/7880/97634758-e25a8180-19fb-11eb-85ff-901f4097d710.png)

However, I don't see an asset file for `asketch2sketch` in the latest release (v4.4.1). I believe this requires users to build this manually.

This came up while working on a PR for [story2sketch](https://github.com/chrisvxd/story2sketch). Their README points to `asketch2sketch-4-3-0.sketchplugin.zip` which I believe will fail because of #196.