message: update readme for 2.1.1
diff: @@ -70,25 +70,36 @@ $ cmake -DCMAKE_INSTALL_PREFIX=/opt/adios2/2.1.1/gnu/openmpi ../source
  ...
  ADIOS2 build configuration:
  - ADIOS Version: 2.1.1
  - C++ Compiler : GNU 6.3.1
  + ADIOS Version: 2.1.0
  + C++ Compiler : GNU 5.4.0
  /usr/bin/c++
  - Installation prefix: /opt/adios2/2.1.1/gnu/openmpi
  + Fortran Compiler : GNU 5.4.0
  + /usr/bin/gfortran
  +
  + Installation prefix: /opt/adios2
  + bin: bin
  + lib: lib
  + include: include
  + cmake: lib/cmake/adios2
  + python: lib/python3.5/site-packages
  +
  Features:
  Library Type: shared
  Build Type: Debug
  Testing: ON
  Build Options:
  BZip2 : ON
  - ZFP : OFF
  + ZFP : ON
  + SZ : ON
  MPI : ON
  DataMan : ON
  + SST : ON
  ZeroMQ : ON
  HDF5 : ON
  - ADIOS1 : OFF
  + ADIOS1 : ON
  Python : ON
  - C : ON
  + Fortran : ON
  SysVShMem: ON
  -- Configuring done
  