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--- index.md
+++ index.md
Helpful documents:<br />
- [Roman Zolotarev: Edit text with vi(1)](https://rgz.ee/vi.html)<br />
-- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)
+- [Jeff W: vi help](http://www.jeffw.com/vi/vi_help.txt)<br />
+- [ViEmu: Graphical vi cheatsheet](http://www.viemu.com/a_vi_vim_graphical_cheat_sheet_tutorial.html)
+
#### Yank / delete an arbitrary number of lines
1) mark the first line: mk