Update README and gitignore

Author: alecalve

.gitignore

@@ -59,3 +59,6 @@ target/
 
 # PyCharm
 .idea/
+
+.vscode/
+.venv/

README.md

@@ -1,5 +1,5 @@
 # bitcoin-blockchain-parser [![Build Status](https://travis-ci.org/alecalve/python-bitcoin-blockchain-parser.svg?branch=master)](https://travis-ci.org/alecalve/python-bitcoin-blockchain-parser) [![Coverage Status](https://coveralls.io/repos/alecalve/python-bitcoin-blockchain-parser/badge.svg?branch=master&service=github)](https://coveralls.io/github/alecalve/python-bitcoin-blockchain-parser?branch=master)
-This Python 3 library provides a parser for the raw data stored by bitcoind. 
+This Python 3 library provides a parser for the raw data stored by bitcoind.
 
 ## Features
 - Detects outputs types
@@ -17,10 +17,10 @@ Below are two basic examples for parsing the blockchain. More examples are avail
 This blockchain parser parses raw blocks saved in Bitcoin Core's `.blk` file format. Bitcoin Core does not guarantee that these blocks are saved in order. If your application does not require that blocks are parsed in order, the `Blockchain.get_unordered_blocks(...)` method can be used:
 
 ```python
-import os 
+import os
 from blockchain_parser.blockchain import Blockchain
 
-# Instantiate the Blockchain by giving the path to the directory 
+# Instantiate the Blockchain by giving the path to the directory
 # containing the .blk files created by bitcoind
 blockchain = Blockchain(os.path.expanduser('~/.bitcoin/blocks'))
 for block in blockchain.get_unordered_blocks():
@@ -34,7 +34,7 @@ for block in blockchain.get_unordered_blocks():
 If maintaining block order is necessary for your application, you should use the `Blockchain.get_ordered_blocks(...)` method. This method uses Bitcoin Core's LevelDB index to locate ordered block data in it's `.blk` files.
 
 ```python
-import os 
+import os
 from blockchain_parser.blockchain import Blockchain
 
 # To get the blocks ordered by height, you need to provide the path of the
@@ -52,7 +52,7 @@ for block in blockchain.get_ordered_blocks(os.path.expanduser('~/.bitcoin/blocks
     print("height=%d block=%s" % (block.height, block.hash))
 ```
 
-Building the LevelDB index can take a while which can make iterative development and debugging challenging. For this reason, `Blockchain.get_ordered_blocks(...)` supports caching the LevelDB index database using [pickle](https://docs.python.org/3.6/library/pickle.html). To use a cache simply pass `cache=filename` to the ordered blocks method. If the cached file does not exist it will be created for faster parsing the next time the method is run. If the cached file already exists it will be used instead of re-parsing the LevelDB database. 
+Building the LevelDB index can take a while which can make iterative development and debugging challenging. For this reason, `Blockchain.get_ordered_blocks(...)` supports caching the LevelDB index database using [pickle](https://docs.python.org/3.6/library/pickle.html). To use a cache simply pass `cache=filename` to the ordered blocks method. If the cached file does not exist it will be created for faster parsing the next time the method is run. If the cached file already exists it will be used instead of re-parsing the LevelDB database.
 
 ```python
 for block in blockchain.get_ordered_blocks(os.path.expanduser('~/.bitcoin/blocks/index'), cache='index-cache.pickle'):
@@ -63,6 +63,14 @@ for block in blockchain.get_ordered_blocks(os.path.expanduser('~/.bitcoin/blocks
 
 ## Installing
 
+### Using pip
+
+```
+pip install blockchain-parser
+```
+
+### Using source
+
 Requirements : python-bitcoinlib, plyvel, coverage for tests
 
 plyvel requires leveldb development libraries for LevelDB >1.2.X
@@ -73,12 +81,25 @@ On Linux, install libleveldb-dev
 sudo apt-get install libleveldb-dev
 ```
 
+Install dependencies contained in `requirements.txt`:
+```
+pip install -r requirements.txt
+```
+
 Then, just run
 ```
 python setup.py install
 ```
 
-## Tests
+## Developing
+
+First, setup a virtualenv and install dependencies:
+
+```
+virtualenv -p python3 .venv
+source .venv/bin/activate
+pip install -r requirements.txt
+```
 
 Run the test suite by lauching
 ```