HDF4 missing files on documentation/index.html page

[lkurz]

https://support.hdfgroup.org/documentation/index.html

https://raw.githubusercontent.com/HDFGroup/hdf4/master/release_notes/USING_HDF4_CMake.txt
https://raw.githubusercontent.com/HDFGroup/hdf4/master/release_notes/INSTALL_CMake.txt

[lkurz]

This is still an issue.

[bmribler]

Thanks for the reminder, @lkurz! All should be taken care of by June or July.