add Vim help

doc/vim-ctrlp-cmdpalette.txt

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+vim-ctrlp-cmdpalette.txt
+
+================================================================================
+CONTENTS                                           *vim-ctrlp-cmdpalette-contents*
+
+1. Vim-CtrlP-CmdPalette................|vim-ctrlp-cmdpalette-vim-ctrlp-cmdpalette|
+    1.1. Installation..........................|vim-ctrlp-cmdpalette-installation|
+    1.2. Options....................................|vim-ctrlp-cmdpalette-options|
+    1.3. Thanks......................................|vim-ctrlp-cmdpalette-thanks|
+
+================================================================================
+VIM-CTRLP-CMDPALETTE                   *vim-ctrlp-cmdpalette-vim-ctrlp-cmdpalette*
+
+This is an extension for the awesome vim
+CtrlP (https://github.com/kien/ctrlp.vim) plugin.
+
+This extension adds a new CtrlP command, the `:CtrlPCmdPalette`, which
+allows you to find and run vim commands (internal or custom).
+
+--------------------------------------------------------------------------------
+INSTALLATION                                   *vim-ctrlp-cmdpalette-installation*
+
+First you will need to have CtrlP (https://github.com/kien/ctrlp.vim)
+installed and a vim compiled with python support. Once you have that:
+
+*   If you use Vim-plug (https://github.com/junegunn/vim-plug), add
+    this to your plugins list: .
+*   If you use Vundle (https://github.com/gmarik/vundle), add this to
+    your bundles list: .
+*   If you use Patogen (https://github.com/tpope/vim-pathogen), clone
+    this repo inside your bundles dir.
+
+Done! Now you can call `:CtrlPCmdPalette`, or map it to a keybinding :)
+
+--------------------------------------------------------------------------------
+OPTIONS                                             *vim-ctrlp-cmdpalette-options*
+
+If you want the selected command to be executed by default, add this to
+your .vimrc
+
+
+
+--------------------------------------------------------------------------------
+THANKS                                               *vim-ctrlp-cmdpalette-thanks*
+
+Special thanks to the creator of this
+plugin (https://github.com/sgur/ctrlp-extensions.vim), which allowed me
+to learn how to extend CtrlP.
+
+ vim:tw=78:ts=8:ft=help:norl: