added that all services need authentication

content/_index.md

@@ -1,14 +1,13 @@
 
 Neurodesk Play
 - Recommended for quick access and trialling
-- Files and sessions are deleted after exiting (except our Play instance in the US)
 - only a limited number of instances are available and the CPU and RAM are limited as well. If you require more sessions or resources, it's possible to run a custom Neurodesk lab (https://lab.neurodesk.org). For more information, please get in touch: [email protected]
 
 To use Neurodesk Play, choose the link below closest to your location:
 
 - [Australia](https://play.neurodesk.cloud.edu.au) (enabled through ARDC resources; requires AAF login)
 - [US](https://play-america.neurodesk.org) (enabled through Jetstream2 cloud resources; requires GitHub login)
-- [Europe](https://play-europe.neurodesk.org) (enabled through services and resources provided by the EGI Federation with the dedicated support of CESNET-MCC)
+- [Europe](https://play-europe.neurodesk.org) (enabled through services and resources provided by the EGI Federation with the dedicated support of CESNET-MCC; requires GitHub login)
 
 To transfer data onto Neurodesk Play: