diff --git a/README.md b/README.md
index 2474530..2b5c6fd 100644
--- a/README.md
+++ b/README.md
@@ -247,13 +247,13 @@ To run examples, you need to run ethereum blockchain local (testrpc).
 
 If you are using docker as development machain, you can try [ethdock](https://github.com/sc0vu/ethdock) to run local ethereum blockchain, just simply run `docker-compose up -d testrpc` and expose the `8545` port.
 
-# Develop
+# Development
 
-### Local php cli installed
+### Testing
 
-1. Clone the repo and install packages.
+1. Start the container(from web3.php/docker).
 ```
-git clone https://github.com/web3p/web3.php.git && cd web3.php && composer install
+docker-compose up -d php ganache
 ```
 
 2. Run test script.
@@ -261,38 +261,6 @@ git clone https://github.com/web3p/web3.php.git && cd web3.php && composer insta
 vendor/bin/phpunit
 ```
 
-### Docker container
-
-1. Clone the repo and run docker container.
-```
-git clone https://github.com/web3p/web3.php.git
-```
-
-2. Copy web3.php to web3.php/docker/app directory and start container.
-```
-cp files docker/app && docker-compose up -d php ganache
-```
-
-3. Enter php container and install packages.
-```
-docker-compose exec php ash
-```
-
-4. Change testHost in `TestCase.php`
-```
-/**
- * testHost
- * 
- * @var string
- */
-protected $testHost = 'http://ganache:8545';
-```
-
-5. Run test script
-```
-vendor/bin/phpunit
-```
-
 ###### Install packages
 Enter container first
 ```
diff --git a/docker/docker-compose.yml b/docker/docker-compose.yml
index 9924d78..1786876 100644
--- a/docker/docker-compose.yml
+++ b/docker/docker-compose.yml
@@ -1,4 +1,4 @@
-version: '2'
+version: '3'
 
 services:
 
@@ -7,7 +7,7 @@ services:
             context: ./php
             dockerfile: Dockerfile-72
         volumes:
-            - ./app:/app
+            - ../:/app
         tty: true
 
     ganache:
@@ -15,4 +15,4 @@ services:
             context: ./ganache
             dockerfile: Dockerfile
         ports:
-            - "8545"
+          - "8545:8545"
diff --git a/docker/ganache/Dockerfile b/docker/ganache/Dockerfile
index 5f99bb9..9ce4c73 100644
--- a/docker/ganache/Dockerfile
+++ b/docker/ganache/Dockerfile
@@ -6,4 +6,4 @@ RUN npm install -g ganache-cli
 
 EXPOSE 8545
 
-CMD ganache-cli -g 0 -l 6000000 --hostname=0.0.0.0
\ No newline at end of file
+CMD ganache-cli -g 0 -l 6000000 --hostname=0.0.0.0