docs: fix comment block

runtime/src/worker_thread.c

@@ -138,9 +138,9 @@ done:
  * Mark the currently executing sandbox as blocked, remove it from the local runqueue,
  * and pull the sandbox at the head of the runqueue
  *
- * FIXME : What happens if we block on a sandbox that has preempted something ? Should we try to restore first?
+ * FIXME: What happens if there are preempted or woken (but not running) sandboxes? When we block, when and how do we
- * Is this accomplished by the runqueue design?
+ * run them? Is this the runqueue appropriately checked, and runnable sandboxes executed?
- **/
+ */
 void
 worker_thread_block_current_sandbox(void)
 {