Update CONTRIBUTING.md (#38)

Author: manez

CONTRIBUTING.md

@@ -8,7 +8,7 @@ Please note that this project operates under the [Islandora Community Code of Co
 
 ## Workflows
 
-The group meets each Wednesday at 1:00 PM Eastern. Meeting notes and announcements are posted to the [Islandora community list](https://groups.google.com/forum/#!forum/islandora) and the [Islandora developers list](https://groups.google.com/forum/#!forum/islandora-dev). You can view meeting agendas, notes, and call-in information [here](https://github.com/Islandora/documentation/wiki#islandora-8-tech-calls). Anybody is welcome to join the calls, and add items to the agenda.
+The Islandora 8 Tech Call meets each Wednesday at 1:00 PM Eastern, and the Islandora 8 User Call meets every second Thursday at 1:00 PM Eastern. Meeting notes and announcements are posted to the [Islandora community list](https://groups.google.com/forum/#!forum/islandora) and the [Islandora developers list](https://groups.google.com/forum/#!forum/islandora-dev). You can view meeting agendas, notes, and call-in information [here](https://github.com/Islandora/documentation/wiki#islandora-8-tech-calls). Anybody is welcome to join the calls, and add items to the agenda.
 
 ### Use cases