Some cleanup in descriptions, spelling and software details

[CV-GPhL]

• Since _reflns_shell can be a list, the notion of "the high resolution shell" seems outdated.
• spelling of "averge" and "Percentatge"
• correct spelling of autoPROC (and scope of software in details)
• removed duplication

[berrisfordjohn]

Thanks

changes need to be made in https://github.com/wwpdb-dictionaries/mmcif_pdbx/blob/master/base/mmcif_pdbx-base.dic not v5 and v5_next - base is used to make v5 and v5_next

Correcting spelling mistakes - great, thank you

case of autoPROC - we need to check and correct current entries in the PDB archive to ensure we do not have an issue with unlocking depositions.

can you make the requests into single issue pull request so they can individually be accepted / reviewed - i.e. no need to hold up spelling corrections because of review of autoPROC in PDB entries.