Installation failed:Missing plugin manifest.json:v0.8.4
After Installation, I couldn't  find "Plugins > Git".

So I checked log which include this message:

```
Missing plugin manifest.json at URL: file:///Users/[username]/Library/Application%20Support/com.bohemiancoding.sketch3/Plugins/Git.sketchplugin/Contents/Sketch/manifest.json «Plugin Developer»
```

FYI, I installed "v0.8.3" without any problem.

sketch.app: 41.2 (35397)
git.sketchplugin: v0.8.4