Add <Plug>(omnisharp_fold) map to example .vimrc

Author: nickspoons

README.md

@@ -480,6 +480,7 @@ augroup omnisharp_commands
   autocmd FileType cs nmap <silent> <buffer> <Leader>osd <Plug>(omnisharp_documentation)
   autocmd FileType cs nmap <silent> <buffer> <Leader>osfs <Plug>(omnisharp_find_symbol)
   autocmd FileType cs nmap <silent> <buffer> <Leader>osfx <Plug>(omnisharp_fix_usings)
+  autocmd FileType cs nmap <silent> <buffer> <Leader>osfo <Plug>(omnisharp_fold)
   autocmd FileType cs nmap <silent> <buffer> <C-\> <Plug>(omnisharp_signature_help)
   autocmd FileType cs imap <silent> <buffer> <C-\> <Plug>(omnisharp_signature_help)