title sections for aspirational README

Author: ChrisRackauckas

README.md

@@ -5,7 +5,14 @@
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-## Julia Library to solve PDEs using Finite Difference Method
-This library is going to be a part of DiffEq.jl to become the PDE solver alongside Fenics.jl.
+DiffEqOperators.jl provides a set of pre-defined operators for use with
+DifferentialEquations.jl. These operators make it easy to discretize and solve
+common partial differential equations.
 
-Blog posts related to the development of DiffEqOperators.jl can he found [here](https://shivin9.github.io/blog/blogposts/)
+## Automated Finite Difference Method (FDM) Operators
+
+## Operator Compositions
+
+## Matrix-Free Operators
+
+## Jacobian-Vector Product Operators