Readme: add installation video

Change-Id: I614a19ee2313e2c68c46c1fb5951daf6b7ec470c
diff --git a/Readme.md b/Readme.md
index ec1982a..12f1d23 100644
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@@ -119,8 +119,11 @@
 
 ### Install the RKorAPClient package
 #### In RStudio
+
 Start RStudio and click on *Install Packages…* in the *Tools* menu. Enter *RKorAPClient* in the *Packages* input field and click on the *Install* button (keeping *Install Dependencies* checked).
 
+[![Installation of RKorAPClient package in RStudio](https://korap.github.io/RKorAPClient/man/figures/RKorAPClient-RStudio-install.png)<!-- -->](https://korap.github.io/RKorAPClient/man/figures/RKorAPClient-RStudio-install.mp4)
+
 #### Or from the command line
 Start R, then install RKorAPClient from CRAN (or development version from GitHub or KorAP's gerrit server).