Change list of features to bullet list in Introduction.rst (#2300)

Docs/sphinx_documentation/source/Introduction.rst

@@ -7,27 +7,18 @@ applications.
 
 Key features of AMReX include:
 
--  C++ and Fortran interfaces
-
--  1-, 2- and 3-D support
-
--  Support for cell-centered, face-centered, edge-centered, and nodal data
-
--  Support for hyperbolic, parabolic, and elliptic solves on hierarchical
-   adaptive grid structure
-
--  Optional subcycling in time for time-dependent PDEs
-
--  Support for particles
-
--  Support for embedded boundary (cut cell) representations of complex geometries
-
--  Parallelization via flat MPI, OpenMP, hybrid MPI/OpenMP, hybrid
-   MPI/(CUDA or HIP or DPC++), or MPI/MPI
-
--  Parallel I/O
-
--  Plotfile format supported by AmrVis, VisIt, ParaView, and yt.
+   - C++ and Fortran interfaces
+   - 1-, 2- and 3-D support
+   - Support for cell-centered, face-centered, edge-centered, and nodal data
+   - Support for hyperbolic, parabolic, and elliptic solves on hierarchical
+     adaptive grid structure
+   - Optional subcycling in time for time-dependent PDEs
+   - Support for particles
+   - Support for embedded boundary (cut cell) representations of complex geometries
+   - Parallelization via flat MPI, OpenMP, hybrid MPI/OpenMP, hybrid
+     MPI/(CUDA or HIP or DPC++), or MPI/MPI
+   - Parallel I/O
+   - Plotfile format supported by AmrVis, VisIt, ParaView, and yt.
 
 AMReX is developed at LBNL, NREL, and ANL as part of the Block-Structured AMR
 Co-Design Center in DOE's Exascale Computing Project.