updating README to README.md to be able to link to docker

and moving docker config into config/docker so it renders nicely!

Signed-off-by: vsoch <vsoch@users.noreply.github.com>

README → README.md

@@ -1,3 +1,4 @@
+```
                     Finite Element Discretization Library
                                    __
                        _ __ ___   / _|  ___  _ __ ___
@@ -7,13 +8,15 @@
 
                                https://mfem.org
 
+```
+
 MFEM is a modular parallel C++ library for finite element methods. Its goal is
 to enable high-performance scalable finite element discretization research and
 application development on a wide variety of platforms, ranging from laptops to
 supercomputers.
 
 We welcome contributions and feedback from the community. Please see the file
-CONTRIBUTING.md for additional details about our development process.
+[CONTRIBUTING.md](CONTRIBUTING.md) for additional details about our development process.
 
 * For building instructions, see the file INSTALL, or type "make help".
 
@@ -22,6 +25,8 @@ CONTRIBUTING.md for additional details about our development process.
 * The best starting point for new users interested in MFEM's features is to
   review the examples and miniapps at https://mfem.org/examples.
 
+* Instructions for learning with docker are [here](config/docker)
+
 Conceptually, MFEM can be viewed as a finite element toolbox that provides the
 building blocks for developing finite element algorithms in a manner similar to
 that of MATLAB for linear algebra methods. In particular, MFEM provides support
@@ -61,6 +66,8 @@ additional linear and nonlinear solvers, preconditioners, time integrators, etc.
 For examples of using MFEM, see the examples/ and miniapps/ directories, as well
 as the OpenGL visualization tool GLVis which is available at https://glvis.org.
 
+## License
+
 MFEM is distributed under the terms of the BSD-3 license. All new contributions
 must be made under this license. See LICENSE and NOTICE for details.