Merge pull request #171 from non-Jedi/patch-1

Fix incorrect syntax in README

Author: ChrisRackauckas

README.md

@@ -318,7 +318,7 @@ is syntactic sugar for:
 
 ```julia
 t = Variable(:t; known = true)()
-σ = Variable(:σ; known = true)
+σ = Variable(:σ; known = true)()
 ρ = Variable(:ρ; known = true)()
 β = [Variable(:β, i; known = true)() for i in 1:3]
 x = Variable(:x)(t)