Fix syscom roles (#347)

Reviewed-on: #347
Reviewed-by: Aditya Thakral <a3thakra@csclub.uwaterloo.ca>
Co-authored-by: Raymond Li <raymo@csclub.uwaterloo.ca>
Co-committed-by: Raymond Li <raymo@csclub.uwaterloo.ca>

content/team/systems-committee.json

@@ -1,27 +1,27 @@
 [
   {
     "name": "Max Erenberg",
-    "role": "Admin"
+    "role": "Sysadmin"
   },
   {
     "name": "Andrew Wang",
-    "role": "Member",
+    "role": "",
     "image": "/images/team/AndrewWang-Syscom.jpg"
   },
   {
     "name": "Raymond Li",
-    "role": "Member"
+    "role": ""
   },
   {
     "name": "Rio Liu",
-    "role": "Member"
+    "role": ""
   },
   {
     "name": "Amin Bandali",
-    "role": "Member"
+    "role": "Alumni"
   },
   {
     "name": "Zachary Seguin",
-    "role": "Member"
+    "role": "Alumni"
   }
 ]