Add getting started section to Readme.md

Change-Id: I871af63d6bda17dee463e96827274a730d45a8d7
diff --git a/Readme.md b/Readme.md
index 9b08f58..fc9a574 100644
--- a/Readme.md
+++ b/Readme.md
@@ -7,3 +7,25 @@
 ```bash
 devtools::install_git("https://korap.ids-mannheim.de/gerrit/IDS-Mannheim/rderekovecs")
 ```
+
+## Getting started
+
+```r
+help(package="rderekovecs")
+```
+
+## Accessing other DeReKoVecs instances
+
+### KoKoKom
+
+```r
+Sys.setenv(DEREKOVECS_SERVER="https://corpora.ids-mannheim.de/openlab/kokokomvecs")
+```
+
+### CoRoLa (Contemporary Reference Corpus of the Romanian Language)
+
+```r
+Sys.setenv(DEREKOVECS_SERVER="https://corpora.ids-mannheim.de/openlab/corolavecs")
+```
+
+