link documentation in readme

Author: Robbybp

README.md

@@ -5,7 +5,8 @@ incidence graph or matrix of variables and constraints in a JuMP model.
 These tools can be used to detect whether and (approximately) why the
 Jacobian of equality constraints is structurally or numerically singular,
 which commonly happens as the result of a modeling error.
-See the documentation (TODO: host and link) for more information and examples.
+See the [documentation](https://lanl-ansi.github.io/JuMPIn.jl/dev/)
+for more information and examples.
 
 ## Installation
 TODO. Eventually, I would like the following command to work: