update of README

README

 
-MarkovProcesses.jl: A Julia package for Markov Processes.
+# MarkovProcesses.jl 
+
+A Julia package for efficient simulation, statistical inference and verification of Continuous Time Markov Chains.
+
+It implements:
+
+* A core of simulation for Markov Processes
+* Synchronized simulation with Linear Hybrid Automata.
+* Approximate Bayesian Computation (a likelihood-free inference method)
+* Automaton-ABC: a statistical method for verification of parametric CTMC (cite paper)
+
+## Install
+
+This package is not yet accessible via the Julia package manager. For installatation of the package:
+
+1. Clone this git repository on your computer.
+2. Add the "core" directory of this repository to your LOAD_PATH. This can be done by two different ways:
+    * Add the Julia line code 
+` import Distributed: @everywhere
+@everywhere push!(LOAD_PATH, /path/to/markovprocesses.jl/core")`
+on your Julia startup file which is often located in `~/.julia/config/startup.jl` in Unix systems.
+    * If you don't want to add this in your startup file, you can add these lines in your Julia script before `using MarkovProcesses`.
+
+## Getting started 
+
+A few notebooks are available in examples/notebooks for a quick presentation of the different features of the package.
+
+## Test
+
+Execution tests and statistical tests are available. It can be run by:
+
+`julia tests/run_all.jl`
+
+!!! Statistical tests
+    The statistical tests run by tests/run_cosmos.jl needs Cosmos in your PATH environment variable.
+
+## Benchmarks
+
+Efforts have been made for efficient computation of simulations with 100% Julia code. These benchmark can be found in bench/. 
+
+## Info
+
+This package was written during my PhD thesis. The mathematical fundations and the package archtecture are presented in it.