emphasis no integrated plotting

Author: sgratzl

README.md

@@ -6,7 +6,7 @@ LineUp.js as HTMLWidget
 LineUp is an interactive technique designed to create, visualize and explore rankings of items based on a set of heterogeneous attributes. 
 This is a [HTMLWidget](http://www.htmlwidgets.org/) wrapper around the JavaScript library [LineUp.js](https://github.com/sgratzl/lineupjs). Details about the LineUp visualization technique can be found at [http://lineup.caleydo.org](http://lineup.caleydo.org). 
 
-It can be used within standalone [R Shiny](https://shiny.rstudio.com/) apps or [R Markdown](http://rmarkdown.rstudio.com/) files. Integrated plotting does not work due to an outdated integrated Webkit version in RStudio.
+It can be used within standalone [R Shiny](https://shiny.rstudio.com/) apps or [R Markdown](http://rmarkdown.rstudio.com/) files. **Integrated plotting does not work due to an outdated integrated Webkit version in RStudio**.
 [Crosstalk](https://rstudio.github.io/crosstalk/) is supported for synching selections and filtering among widgets. 
 
 Installation