Upgrade examples code

README.md

assets/FortranCISM.html

assets/FortranCISM.md

assets/FortranCISM.pdf

assets/build_fortran.png

assets/f77_format.png

assets/fortran_logo.png

src/00_hello_world.f

src/02_sphere.f

src/04_namelist.def

src/04_namelist.f90

src/04_newton.f

src/05_newton.f90

src/05_newton_plot.f90

src/06_common.f

src/07_OceanGrideChange.f90

src/07_input.nc

src/08_ChristmasTree.txt

src/08_compile_netcdf.txt

src/10_OLD.FOR