Use local wasm-gen in static releases (#79)

* use local wasmgen in static releases

* remove stale badge in readme

* update readme screenshot

* update screenshot again

* use version number in package.json instead

* tmp: dry run inside pr

* Revert "tmp: dry run inside pr"

This reverts commit 93797e0.

* use hosted share link generator in static release

remove tag name from asset name (#72)