Update README.md (oap-project#32)

* Fix the bug about circular reference problem

* Correct the path for providers

* Update README for cloudtik

* Update the README.md

* Update the README.md

README.md

@@ -7,6 +7,50 @@ of taking a lot of time constructing the cluster and platform.
 
 ## Building CloudTik
 
-## Using CloudTik
+Before you start to build wheels for CloudTik, we recommend you create a python environment (>= Python 3.7). We provide ```./dev/install-dev.sh``` to easily setup building environment for you.
+
+### 1. Install prerequisit package for building enviroment:
+```
+bash ./dev/install-dev.sh
+```
+
+### 2. Create a python environment (>= Python 3.7):
+```
+conda create -n cloudtik-py37 -y python=3.7
+conda activate cloudtik-py37
+```
+
+### 3. Build CloudTik wheels with our provided script.
+```
+bash build.sh
+```
+Then under `cloudtik/python/dist` directory, you will find the `*.whl` which is your current specific python version's CloudTik wheel for Linux.
+
+
+## Using CloudTik on AWS
+### 1. Create running env for working node(if the working node not contains conda, please use ```dev/install-conda.sh``` to install conda):
+```
+bash dev/install-conda.sh;  ## Opitional
+conda create -n cloudtik-py37 -y python=3.7;
+conda activate cloudtik-py37;
+```
+### 2. Install Cloudtik libraries:
+```
+pip install -U http://23.95.96.95:8000/latest/cloudtik-0.9.0-cp37-cp37m-manylinux2014_x86_64.whl
+```
+### 3. Configure your credentials in ~/.aws/credentials as described in [the AWS docs](https://boto3.amazonaws.com/v1/documentation/api/latest/guide/configuration.html).
+
+### 4. Use Cloudtik to manager the cluster.
+```
+cloudtik up ./example/aws/example-minimal.yaml -y   # Create or up a  cluster.
+cloudtik get-head-ip ./example/aws/example-minimal.yaml    # Get the ip of head node.
+cloudtik get-worker-ips ./example/aws/example-minimal.yaml    # Get the ips of worker nodes.
+cloudtik exec ./example/aws/example-minimal.yaml [command]   # Exec a command via SSH on a cloudtik cluster.
+cloudtik rsync-down ./example/aws/example-minimal.yaml [source] [target]   # Download file from head node.
+cloudtik rsync-up ./example/aws/example-minimal.yaml [source] [target]   # Upload file to head node.
+cloudtik attach ./example/aws/example-minimal.yaml    # Create or attach to a SSH session to the cluster.
+cloudtik down ./example/aws/example-minimal.yaml -y # Tear down the cluster.
+```
+
 
 ## Contributing to CloudTik