Toggle completion

[nekowasabi]

Issue Description

feature-request

When I type # to add a header line in markdown, it automatically completes the issue number.

I tried to turn off auto-completion and set it up so I can complete manually, but the setting for completion is defined directly in the code.
Therefore, it does not appear that I can change the setting.

https://github.com/pwntester/octo.nvim/blob/490d7145070b6326610d5d41238b1d8e88606f8b/lua/octo/model/octo-buffer.lua#L78-L80v

Describe what happened (or what feature you want)

When writing markdown, I would appreciate the addition of a setting to toggle completion so that unintended completions are not performed.

Describe what you expected to happen

1. Set octo's setting like manual_completion = true in init.vim
2. Execute Octo issue edit xxxx
3. Input #
4. Input <C-x><C-o> for manual completion

Tell us your environment

nvim v0.7.0
OS: debian

[pwntester]

Hi, I think it makes sense to disable the mappings and document them in the FAQ

[nekowasabi]

Thank you @pwntester !! 👍