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--- index.md
+++ index.md
with at least [nvi](https://en.wikipedia.org/wiki/Nvi) 1.79 and
2.1.3 (unicode).
-Helpful documents:<br />
+Helpful documents:
+
- [Roman Zolotarev: Edit text with vi(1)](https://rgz.ee/vi.html)<br />
- [Hugo Daniel: vi is not vim](https://hugodaniel.pt/posts/vi-is-not-vim/)<br />
-- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)<br />
-- [Maarten Litmaath: vi reference](http://www.ungerhu.com/jxh/vi.html)<br />
-- [alphanrrrd: extremely concise cheatsheet](http://www.alphanrrrd.org/vi.html)<br />
-- [ViEmu: Graphical vi cheatsheet](http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html)
+- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt) / [Maarten Litmaath: vi reference](http://www.ungerhu.com/jxh/vi.html)<br />
+- [alphanrrrd: extremely concise cheatsheet](http://www.alphanrrrd.org/vi.html) / [ViEmu: Graphical vi cheatsheet](http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html)<br />
+- [The vi archive and FAQ (mirror)](http://git.larryhynes.net/vi/)
#### Yank / delete an arbitrary number of lines