diff --git a/README.md b/README.md
index c890afaca..4f2509188 100644
--- a/README.md
+++ b/README.md
@@ -228,8 +228,11 @@ Your PR of new Quant models is highly welcomed.
 
 # Quant Dataset Zoo
 Dataset plays a very important role in Quant. Here is a list of the datasets built on `Qlib`.
-- [Alpha360](./qlib/contrib/data/handler.py)
-- [Alpha158](./qlib/contrib/data/handler.py)
+
+| Dataset                                    | US Market | China Market |
+| --                                         | --        | --           |
+| [Alpha360](./qlib/contrib/data/handler.py) |  √        |  √           |
+| [Alpha158](./qlib/contrib/data/handler.py) |  √        |  √           | 
 
 [Here](https://qlib.readthedocs.io/en/latest/advanced/alpha.html) is a tutorial to build dataset with `Qlib`.
 Your PR to build new Quant dataset is highly welcomed.
diff --git a/docs/component/workflow.rst b/docs/component/workflow.rst
index 4ca010851..c44f1100f 100644
--- a/docs/component/workflow.rst
+++ b/docs/component/workflow.rst
@@ -19,9 +19,10 @@ With ``qrun``, user can easily run an `experiment`, which includes the following
     - Processing
     - Slicing
 - Model
-    - Training and inference (static or rolling)
+    - Training and inference
     - Saving & loading
 - Evaluation
+    - Forecast signal analysis
     - Backtest
 
 For each `experiment`, ``Qlib`` has a complete system to tracking all the information as well as artifacts generated during training, inference and evaluation phase. For more information about how Qlib handles `experiment`, please refer to the related document: `Recorder: Experiment Management <../component/recorder.html>`_.
@@ -276,4 +277,4 @@ Here is the configuration details of different `Record Template` such as ``Signa
           kwargs: 
             config: *port_analysis_config
 
-For more information about the ``Record`` module in ``Qlib``, user can refer to the related document: `Record <../component/recorder.html#record-template>`_.
\ No newline at end of file
+For more information about the ``Record`` module in ``Qlib``, user can refer to the related document: `Record <../component/recorder.html#record-template>`_.
diff --git a/docs/introduction/quick.rst b/docs/introduction/quick.rst
index 32752fd83..ee906b6f6 100644
--- a/docs/introduction/quick.rst
+++ b/docs/introduction/quick.rst
@@ -61,7 +61,7 @@ Auto Quant Research Workflow
 
 
     - Workflow result
-        The result of ``qrun`` is as follows, which is also the result of ``Intraday Trading``. Please refer to  `Intraday Trading <../component/backtest.html>`_. for more details about the result.
+        The result of ``qrun`` is as follows, which is also the typical result of ``Forecast model(alpha)``. Please refer to  `Intraday Trading <../component/backtest.html>`_. for more details about the result.
 
         .. code-block:: python
         
@@ -91,4 +91,4 @@ Auto Quant Research Workflow
 Custom Model Integration
 ===============================================
 
-``Qlib`` provides several models such as ``lightGBM`` and ``DNN`` model as the baseline of ``Interday Model``. In addition to the default model, users can integrate their own custom models into ``Qlib``. If users are interested in the custom model, please refer to `Custom Model Integration <../start/integration.html>`_.
+``Qlib`` provides a batch of models (such as ``lightGBM`` and ``DNN`` models) as examples of ``Interday Model``. In addition to the default model, users can integrate their own custom models into ``Qlib``. If users are interested in the custom model, please refer to `Custom Model Integration <../start/integration.html>`_.
diff --git a/docs/start/initialization.rst b/docs/start/initialization.rst
index 423d7edf8..05a329df7 100644
--- a/docs/start/initialization.rst
+++ b/docs/start/initialization.rst
@@ -63,13 +63,14 @@ Besides `provider_uri` and `region`, `qlib.init` has other parameters. The follo
         If Qlib fails to connect redis via `redis_host` and `redis_port`, cache mechanism will not be used! Please refer to `Cache <../component/data.html#cache>`_ for details.
 - `exp_manager`
     Type: dict, optional parameter, the setting of `experiment manager` to be used in qlib. Users can specify an experiment manager class, as well as the tracking URI for all the experiments. However, please be aware that we only support input of a dictionary in the following style for `exp_manager`. For more information about `exp_manager`, users can refer to `Recorder: Experiment Management <../component/recorder.html>`_.
-    ::
+    .. code-block:: Python
 
-        {
+        # For example, if you want to set your tracking_uri to a <specific folder>, you can initialize qlib below
+        qlib.init(provider_uri=provider_uri, region=REG_CN, exp_manager= {
             "class": "MLflowExpManager",
             "module_path": "qlib.workflow.expm",
             "kwargs": {
-                "uri": "python_execution_path/mlruns"),
+                "uri": "python_execution_path/mlruns",
                 "default_exp_name": "Experiment",
             }
-        }
\ No newline at end of file
+        })
diff --git a/docs/start/integration.rst b/docs/start/integration.rst
index 102d88425..09e8648f7 100644
--- a/docs/start/integration.rst
+++ b/docs/start/integration.rst
@@ -5,7 +5,7 @@ Custom Model Integration
 Introduction
 ===================
 
-``Qlib``'s `Model Zoo` includes models such as ``LightGBM``, ``DNN``, ``LSTM``, etc.. These models are treated as the baselines of ``Interday Model``. In addition to the default models ``Qlib`` provide, users can integrate their own custom models into ``Qlib``.
+``Qlib``'s `Model Zoo` includes models such as ``LightGBM``, ``DNN``, ``LSTM``, etc.. These models are examples of ``Interday Model``. In addition to the default models ``Qlib`` provide, users can integrate their own custom models into ``Qlib``.
 
 Users can integrate their own custom models according to the following steps.
 
@@ -87,6 +87,7 @@ The Custom models need to inherit `qlib.model.base.Model <../reference/api.html#
     .. code-block:: Python
 
         def finetune(self, dataset: DatasetH, num_boost_round=10, verbose_eval=20):
+            # Based on existing model and finetune by train more rounds
             dtrain, _ = self._prepare_data(dataset)
             self.model = lgb.train(
                 self.params,
@@ -101,7 +102,7 @@ The Custom models need to inherit `qlib.model.base.Model <../reference/api.html#
 Configuration File
 =======================
 
-The configuration file is described in detail in the `Workflow <../component/workflow.html#complete-example>`_ document. In order to integrate the custom model into ``Qlib``, users need to modify the "model" field in the configuration file.
+The configuration file is described in detail in the `Workflow <../component/workflow.html#complete-example>`_ document. In order to integrate the custom model into ``Qlib``, users need to modify the "model" field in the configuration file. The configuration describes which models to use and how we can initialize it.
 
 - Example: The following example describes the `model` field of configuration file about the custom lightgbm model mentioned above, where `module_path` is the module path, `class` is the class name, and `args` is the hyperparameter passed into the __init__ method. All parameters in the field is passed to `self._params` by `\*\*kwargs` in `__init__` except `loss = mse`. 
 
diff --git a/qlib/contrib/model/gbdt.py b/qlib/contrib/model/gbdt.py
index e52c05906..058d9a0e3 100644
--- a/qlib/contrib/model/gbdt.py
+++ b/qlib/contrib/model/gbdt.py
@@ -80,6 +80,7 @@ class LGBModel(ModelFT):
         verbose_eval : int
             verbose level
         """
+        # Based on existing model and finetune by train more rounds
         dtrain, _ = self._prepare_data(dataset)
         self.model = lgb.train(
             self.params,