Remove install.sh and improve README

README.md

@@ -1,13 +1,15 @@
 # Country City API
 [![Build Status](https://travis-ci.org/shivammathur/countrycity.svg?branch=master)](https://travis-ci.org/shivammathur/countrycity)
 [![Code Climate](https://codeclimate.com/github/shivammathur/countrycity/badges/gpa.svg)](https://codeclimate.com/github/shivammathur/countrycity)
-[![Coverage Status](https://coveralls.io/repos/github/shivammathur/countrycity/badge.svg?branch=master)](https://coveralls.io/github/shivammathur/countrycity?branch=master)
 [![codecov](https://codecov.io/gh/shivammathur/countrycity/branch/master/graph/badge.svg)](https://codecov.io/gh/shivammathur/countrycity)
-[![License](https://poser.pugx.org/shivammathur/countrycity/license)](https://packagist.org/packages/shivammathur/countrycity)
+[![License](https://poser.pugx.org/shivammathur/countrycity/license)](license.md)
+[![Support me on Patreon](https://shivammathur.com/badges/patreon.svg)](https://www.patreon.com/shivammathur)
+[![Support me on Paypal](https://shivammathur.com/badges/paypal.svg)](https://www.paypal.me/shivammathur)
+[![Get Help on codementor](https://cdn.codementor.io/badges/get_help_github.svg)](https://www.codementor.io/shivammathur?utm_source=github&utm_medium=button&utm_term=shivammathur&utm_campaign=github)
 
 Country City API is a REST API to get a list of all the countries in the world. It can also be used to get a list of all the cities in a country.
 
-### Installing the API
+### :zap: Installing the API
 
 - Download this API using [composer](https://getcomposer.org/download/) by executing the command below.
 ```bash
@@ -19,7 +21,7 @@ composer create-project shivammathur/countrycity countrycity "master-dev" --pref
 ```
 - You are all set.
 
-### Rest API Features
+### :sparkles: Rest API Features
 - Built using Slim micro framework.
 - Caching enabled with following headers
   - ETag
@@ -28,24 +30,28 @@ composer create-project shivammathur/countrycity countrycity "master-dev" --pref
 - Fast and lightweight API
 - PSR 7 Complaint
 
-### API Endpoints
+### :hash: API Endpoints
 
-- Get All Countries
+All API responses are in `json` format.
+
+- Get the list of all countries
 ```
 /countries
 ```
 
-- Get All Cities in a Country
+- Get the list all cities in a country
 ```
 /cities/{countryName}
 ```
 
-### Error Format
+### :wrench: Error Format
+
+If there is an error in the API, you will get an error in `json` format as response
 ```json
 {"error":"true", "message": "error message here"}
 ```                
 
-### Testing
+### :rotating_light: Testing
 ```bash
 vendor/bin/phpunit --configuration phpunit.xml.dist
 ```