updates README

Author: ederc

README.md

@@ -1,9 +1,16 @@
+# AlgebraicSolving.jl
+
 A julia package for algebraically solving multivariate polynomial systems.
 
 ## Installation
 AlgebraicSolving requires Julia 1.6 or newer. In principle it can be installed and used
 like any other Julia package; doing so will take a couple of minutes:
 
+```julia
+julia> using Pkg
+julia> Pkg.add("AlgebraicSolving")
+julia> using AlgebraicSolving
+```
 
 ## Documentation and Examples