Update release process to include docs
docker push tremorproject/tremor:latest
```
+* on tremor-www-docs and update the tremor version in `Makefile`
+* create a corresponding release on tremor-www-docs
+
* If syntax changed: Update the highlighters:
- https://github.com/tremor-rs/tremor-vim
- https://github.com/tremor-rs/highlightjs-tremor
