add doc links to readme

README.md

@@ -4,18 +4,23 @@ Repository for Castellum docs in _en_ and _de_. Castellum is a privacy-compliant
 subject database for scientific research developed at Max Planck institutes 
 within the Max Planck Society (see [links](#links) for more info).
 
+Castellum docs are automatically deployed to GitLab pages (on changes in 
+_master_ branch). They are available here:
+- English: https://castellum.mpib.berlin/documentation/en/
+- German: https://castellum.mpib.berlin/documentation/de/
+
 ## Status
 
 The Castellum project is still in development. Therefore, there may occur some 
-outdated and/or obscure statements in the related docs. Yet, we are eager to keep
-docs and code in sync. 
+outdated and/or obscure statements in the related docs. Yet, we are eager to 
+keep docs and code in sync. 
 
 Please [submit](https://git.mpib-berlin.mpg.de/castellum/documentation/issues) 
-an issue if you miss a topic or encounter serious problems in understanding the docs 
-or using Castellum.
+an issue if you miss a topic or encounter serious problems in understanding the 
+docs or using Castellum.
 
 ## Links
 
 -   Project home page: https://www.mpib-berlin.mpg.de/en/research/lifespan-psychology/castellum
--   Source code: https://git.mpib-berlin.mpg.de/castellum/castellum/
+-   Castellum source code: https://git.mpib-berlin.mpg.de/castellum/castellum/
 -   Code of conduct: https://www.mpg.de/11961177/code-of-conduct-en.pdf
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