documenting smp and scheduling to research

src/sched.zig

@@ -18,8 +18,8 @@ const heap = @import("heap.zig");
 pub const Priority = u3;
 const num_priorities = 8;
 
-const stack_size = 16 * 1024; // per-task kernel stack
-const max_tasks = 16;
+const stack_size = 16 * 1024; // each task's kernel stack is 16 KiB
+const max_tasks = 16; // the maximum number of tasks alive at once is 16 in a static sized pool
 
 const State = enum { free, ready, running, blocked };