Fix doc

Author: bkis

README.md

@@ -42,8 +42,8 @@ The VedaWeb application exposes some API endpoints which are (at the time) limit
 
 ### Documentation of existing API endpoints
 
-> :warning: The short documentation below is from **May 2019**  
-> For more recent information, please see the dynamic documentation at [https://vedaweb.uni-koeln.de/rigveda/swagger-ui.html](https://vedaweb.uni-koeln.de/rigveda/swagger-ui.html)!
+> :warning: The short documentation below is not complete, but explains the concepts of the exposed endpoints.  
+> For a complete overview of the endpoints, please see the dynamic documentation at [https://vedaweb.uni-koeln.de/rigveda/swagger-ui.html](https://vedaweb.uni-koeln.de/rigveda/swagger-ui.html)
 
 #### Direct Document Access via Index Numbers
 The endpoints used for direct access to the documents managed by the application are accessible via simple `GET` requests of the following form: