Vignette is Untidy

[DarioS]

The first R output in the vignette is a long list of package loading messages. The R Markdown chunk should have message = FALSE in it to avoid the noise. So, the first chunk would be better if it were

```{r, eval=TRUE, message=FALSE}
library(scPipe)
library(SingleCellExperiment)
data_dir = tempdir()

Also, none of the figures have all of their plot and axis titles readable. The graphs should be improved by changes to fig.height and fig.width chunk options.