Shorten the Chart description
Shorten the Chart description

- this will make the text shown during a search read better

Compare the local vs the riffrepo:

```
$ helm search faas
NAME         	VERSION	DESCRIPTION
local/riff   	0.0.1  	riff is for functions - a FaaS for Kubernetes
riffrepo/riff	0.0.1  	riff is for functions - a FaaS built for Kubern...
```

After this change the riffepo will be the same as the local

markfisher/sk8s,markfisher/sk8s,markfisher/sk8s,markfisher/sk8s