This grammar can cope with common issues found in the P1 stage, e.g.:
With default settings, the grammar is applied to files with .dp and
.proofread name suffixes. You can use menus or the
Ctrl-Shift-p shortcut to
activate the reformat the selected text according to Distributed Proofreaders
guidelines If no text is selected, the whole buffer content will be reformatted.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.