(docs) refine micro perf readme

byte_micro_perf/README.md

@@ -22,15 +22,14 @@ Please follow the given style at `ByteMLPerf/vendor_zoo` directory to create a n
 ### An example
 
 ```
-python3 launch.py --task softmax --hardware_type GPU
+python3 launch.py --task exp --hardware_type GPU
 ```
 #### Usage
 ```
 --task: operator name                              please create a workload file for new operators by following the existing style in byte_micro_perf/workloads.
 
 --hardware_type: hardware category name            please derive a Backend class for your heterogeneous hardware in byte_micro_perf/backends.
 
---vendor_path: hardware config path(optional)      it conrresponding to hardware configuration file in ByteMLPerf/vendor_zoo if provided.
 ```
 
 ### Expected Output
@@ -51,23 +50,6 @@ python3 launch.py --task softmax --hardware_type GPU
     ]
 }
 
-{
-    "Operator": "ALLTOALL",
-    "Backend": "GPU",
-    "Host Info": "Intel(R) Xeon(R) Platinum 8336C CPU @ 2.30GHz",
-    "Device Info": "A100-PCIE-40GB",
-    "Performance": [
-        {
-            "Dtype": "float32",
-            "Memory Size(MB)": 0.06,
-            "Group": 4,
-            "Algo bandwidth(GB/s)": 1.54,
-            "Bus bandwidth(GB/s)": 1.15,
-            "Bandwidth Utilization(%)": 0.0,
-            "Avg latency(us)": 42.58
-        }
-    ]
-}
 ```
 
 ## Trouble Shooting