Merge pull request #30 from JuliaPOMDP/readme-patch

Update README.md for install instructions + CI badge

Author: rejuvyesh

.travis.yml

@@ -1,6 +1,6 @@
 # ARDESPOT
 
-[![Build Status](https://travis-ci.org/JuliaPOMDP/ARDESPOT.jl.svg?branch=master)](https://travis-ci.org/JuliaPOMDP/ARDESPOT.jl)
+[![CI](https://github.com/JuliaPOMDP/ARDESPOT.jl/actions/workflows/CI.yml/badge.svg)](https://github.com/JuliaPOMDP/ARDESPOT.jl/actions/workflows/CI.yml)
 [![Coverage Status](https://coveralls.io/repos/JuliaPOMDP/ARDESPOT.jl/badge.svg?branch=master&service=github)](https://coveralls.io/github/JuliaPOMDP/ARDESPOT.jl?branch=master)
 [![codecov.io](http://codecov.io/github/JuliaPOMDP/ARDESPOT.jl/coverage.svg?branch=master)](http://codecov.io/github/JuliaPOMDP/ARDESPOT.jl?branch=master)
 
@@ -14,12 +14,10 @@ If you are trying to use this package and require more documentation, please fil
 
 ## Installation
 
-On Julia v0.7 or later, ARDESPOT is in the JuliaPOMDP registry
+On Julia v1.0 or later, ARDESPOT is in the Julia General registry
 
 ```julia
 Pkg.add("POMDPs")
-using POMDPs
-POMDPs.add_registry()
 Pkg.add("ARDESPOT")
 ```