Add dependency: Leybold instrument driver

README.md

@@ -33,7 +33,12 @@ External Dependencies
 =================================
 - Syslog; Refer to http://sine.ni.com/nips/cds/view/p/lang/de/nid/209116
 - Monitored Actor; Refer to https://decibel.ni.com/content/thread/18301 and http://lavag.org/topic/17056-monitoring-actors
-
+- Leybold Instrument Driver to be installed to `LabVIEW\instr.lib`
+  - CENTER ONE: http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=9993
+  - Optionally (not yet used)
+    - CENTER TWO: http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=9991
+    - CENTER THREE: http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=9992
+  
 Getting started:
 =================================
 - Clone this repository, if not alread done.