Update JOJ3 Configuration Schema

JOJ3-Configuration-Schema.md

@@ -98,6 +98,12 @@ weights = [ 10, 20, 15]
 score = 10 # default OJ score for each test case
 limit.cpu = 10 # default cpu limit (in sec) for each test case
 limit.mem = 50 # set default mem limit (in MB) for all OJ test cases
+driver="./driver ./mumsh"
+
+[judge-memcheck]
+cases = [ 1, 2, 4, ,5,9] # FIXME: wrong format
+driver="./driver ./mumsh-memory-check"
+limit.mem = 500
 
 [[test_case]]
 filename = "case4.in" # filename of a test case with non-default setup
@@ -109,4 +115,8 @@ limit.mem = 5
 filename = "case10.in"
 score = 30
 limit.mem = 100 # limit.cpu is kept as default
+
+[[test_case]]
+filename = "case11.in"
+
 ```