Document DeMemWM noise routes

configurations/algorithm/dememwm_base.yaml

@@ -13,6 +13,8 @@ memory_noise:
   anchor_max_fraction: 0.25
   dynamic_max_fraction: 0.50
   revisit_max_fraction: 0.25
+# Per stream: all = always active, high = active for high query noise,
+# low = active for low query noise.
 noise_route: {anchor: all, dynamic: all, revisit: all}
 trainability:
   freeze_vae: true