Fix an issue when attempting to detect an existing AVD image

Fixes #286.

README.md

@@ -9,6 +9,7 @@
 [![Codacy Badge](https://api.codacy.com/project/badge/Grade/3f000ffb97db45a59161814e1434c429)](https://www.codacy.com/app/butomo1989/docker-appium?utm_source=github.com&utm_medium=referral&utm_content=butomo1989/docker-appium&utm_campaign=Badge_Grade)
 [![GitHub release](https://img.shields.io/github/release/budtmo/docker-android.svg)](https://github.com/budtmo/docker-android/releases)
 [![FOSSA Status](https://app.fossa.io/api/projects/git%2Bgithub.com%2Fbudtmo%2Fdocker-android.svg?type=shield)](https://app.fossa.io/projects/git%2Bgithub.com%2Fbudtmo%2Fdocker-android?ref=badge_shield)
+[![Paypal Donate](https://img.shields.io/badge/paypal-donate-blue.svg)](http://paypal.me/budtmo)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](http://makeapullrequest.com)
 
 Docker-Android is a docker image built to be used for everything related to mobile website testing and Android project.
@@ -81,7 +82,14 @@ Docker is installed in your system.
 Quick Start
 -----------
 
-1. Run Docker-Android
+1. Your machine need to support virtualization. To check it:
+
+	```
+	sudo apt install cpu-checker
+	kvm-ok
+	```
+
+2. Run Docker-Android
 
 	- For ***Linux OS***, please use image name that contains "x86"
 
@@ -92,7 +100,7 @@ Quick Start
 	- For ***OSX*** and ***Windows OS***, please use Virtual Machine that support Virtualization with Ubuntu OS
 
 
-2. Verify the ip address of docker host.
+3. Verify the ip address of docker host.
 
    - For OSX, you can find out by using following command:
 
@@ -102,7 +110,7 @@ Quick Start
 
    - For different OS, localhost should work.
 
-3. Open ***http://docker-host-ip-address:6080*** from web browser. Note: Adding ```?view_only=true``` will give user only view only permission.
+4. Open ***http://docker-host-ip-address:6080*** from web browser. Note: Adding ```?view_only=true``` will give user only view only permission.
 
 Custom configurations
 ---------------------

docker/Emulator_x86

@@ -1,4 +1,4 @@
-FROM appium/appium:1.21.0-p0
+FROM appium/appium:1.20.2-p0
 
 LABEL maintainer "Budi Utomo <budtmo.os@gmail.com>"
 

docker/Genymotion

@@ -1,4 +1,4 @@
-FROM appium/appium:1.21.0-p0
+FROM appium/appium:1.20.2-p0
 
 LABEL maintainer "Budi Utomo <budtmo.os@gmail.com>"
 

docker/Real_device

@@ -1,4 +1,4 @@
-FROM appium/appium:1.21.0-p0
+FROM appium/appium:1.20.2-p0
 
 LABEL maintainer "Budi Utomo <budtmo.os@gmail.com>"
 

src/app.py

@@ -56,7 +56,7 @@ def is_initialized(device_name) -> bool:
     if os.path.exists(config_path):
         logger.info('Found existing config file at {}.'.format(config_path))
         with open(config_path, 'r') as f:
-            if any('hw.device.name={}'.format(device_name) in line for line in f):
+            if any('hw.device.name = {}'.format(device_name) in line for line in f):
                 logger.info('Existing config file references {}. Assuming device was previously initialized.'.format(device_name))
                 return True
             else: