C++ - Opening a windows with the man page for the word under the cursor - VIM

How to get help when stay developing in VIM?
Como obter ajuda quando estiver desenvolvendo em VIM?

Put the cursor at the word that you want and click "shift + k", the man page of specific command will open
Coloque o cursor na palavra que deseja e click "shift + k", a página do comando específico irá abri

Is the same that you do in command line:


    man 3 <word>

Section of man page on Unix:

Section	Description
1	General commands
1M	System administration commands and daemons
2	System calls
3	C library functions
4	File formats and conventions
5	Miscellanea
6	Games and screensavers
7	Special files (usually devices, those found in /dev) and drivers