give hint to QR Code on the left

Change-Id: I07c171cc53c2c7729281e3e96d120ef5459e1d03
diff --git a/R/poster.Rmd b/R/poster.Rmd
index 22c627f..802a578 100644
--- a/R/poster.Rmd
+++ b/R/poster.Rmd
@@ -99,7 +99,7 @@
 
 * written parts for Chinese, Czech, English (mostly), German, Irish (partly), Norwegian publicly available
   * partially including UDPipe 2.0 annotations [@straka_udpipe_2018]
-  * usable via Corpus Workbench or KorAP [@diewald_korap_2016]
+  * usable via CWB or KorAP [@diewald_korap_2016] ➝ QR Code on the left
 
 ```{r korap-query, fig.cap="KorAP UI for ICC-GER and ICC-NOR, showing annotation queries and layers, as well as a virtual corpus definition, based on ICC genre and publication date metadata."}
 knitr::include_graphics("korap_query_ger-nor.svg")