add initial pointers for Maria's optparse question

20170306_stammtisch.md

@@ -73,4 +73,10 @@ Why do you need a `/`?
     - a absolute path starts with /
 - https://wiki.ubuntuusers.de/Verzeichnisstruktur/
 
-## Maria, optparse in R debugging# 
+## Maria, optparse in R debugging
+- time run out, feel free to add pointers/solution here
+
+    ```R
+    ?optparse
+    vignette("optparse")
+    ```