Update finetune_icnet.md

turtorial/finetune_icnet.md

@@ -83,7 +83,7 @@ TEST:
     TEST_MODEL: "./saved_model/icnet_pet/final"
 SOLVER:
     NUM_EPOCHS: 100
-    LR: 0.01
+    LR: 0.005
     LR_POLICY: "poly"
     OPTIMIZER: "sgd"
 ```