Minor fix in documentation to ensure correct code sample display
Minor fix in documentation to ensure correct code sample display

Without this change (or appending :: to the preceding sentence) the code
samples were not correctly indented (e.g.
"source /opt/privacyidea/bin/activate pi-manage backup create"
all on one line).

wheldom01/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,wheldom01/privacyidea,jh23453/privacyidea,privacyidea/privacyidea,privacyidea/privacyidea,jh23453/privacyidea,jh23453/privacyidea