Update readme (#46)

Improvement in the readme, more steps were added

README.md

@@ -5,12 +5,53 @@
 [![dependencies Status](https://david-dm.org/poanetwork/poa-poba/status.svg)](https://david-dm.org/poanetwork/poa-poba)
 [![devDependencies Status](https://david-dm.org/poanetwork/poa-poba/dev-status.svg)](https://david-dm.org/poanetwork/poa-poba?type=dev)
 
-## Development environment
 
-After cloning the repo, run `npm run ganache` in one terminal. Leave it open
-and, in another one, run:
+## Getting Started
 
+These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.
+
+### Prerequisites
+What things you need to do previous to install
+- Create a sandbox account on plaid.com, we need some information,  for example:
+```
+PLAID_CLIENT_ID=1234565b16d38dd9e9b00013178296 
+PLAID_SECRET=12345672352d3da02e112fe290e1e8fd2085 
+PLAID_PUBLIC_KEY=123456e1e61319a1192b80bd5d09e7c5ac35 
+```
+
+### Installing
+
+A step by step series that tell you how to get a development env running
+
+- Clone the repository and move to the directory where we cloned the repository
+```
+$ git clone git@github.com:poanetwork/poa-poba.gitt
+$ cd poa-poba
+```
+
+- Install npm dependencies
+```
+$ npm install
+```
+
+- Move to the server folder, copy the file .env.example to .env, and add the plaid information related to the API
+```
+$ cd server
+$ cp .env.example .env
+```
+
+- Move to the frontend folder, copy the file .env.example to .env, and add the plaid information related to the API
+```
+$ cd frontend
+$ cp .env.example .env
+```
+
+- In another terminal, move to the directory where we cloned the repository and run the following command
+```
+$ npm run ganache
+```
+
+- In the previous terminal, run the following command
 ```
-npm install
-npm run dev
+$ npm run dev
 ```