don't display (temporary) warnings when loading SE

episodes/60-next-steps.Rmd

@@ -171,7 +171,7 @@ We will create a `SummarizedExperiment` from these tables:
 To do this we can put the different parts together using the
 `SummarizedExperiment` constructor:
 
-```{r, message=FALSE}
+```{r, message=FALSE, warning=FALSE}
 ## BiocManager::install("SummarizedExperiment")
 library("SummarizedExperiment")
 ```