minor tweaks in prereq

Author: boegel

isc26-EESSI/prerequisites.tex

@@ -1,5 +1,6 @@
-Attendees wishing to participate in the guided examples are expected to use their
-own notebook computers with a working SSH client.
+Attendees wishing to participate in the guided hands-on exercises are expected to use their
+own laptop to access a prepared environment through a standard internet browser.
+%with a working SSH client.
 
 Detailed information on how to prepare for this tutorial will be provided
 through the tutorial website, similar to