Allow different paths to save and reference image

[FlorianWanders]

Allow absolute paths to save image with let g:mdip_imgdir_absolute and allow relative in-text references let g:mdip_imgdir_intext.

Tested on linux.

[FlorianWanders]

Hi Maxim,

Love the plugin, thanks so much for creating and maintaining it!

I felt this addition gives a lot of flexibility without changing anything in its current use. I tested this on Linux, but probably good to double check I did not break something accidentally and also see if this works on other operating systems?

Use case: I store notes in one directory and store images in a folder in another (parent) directory. By specifying absolute links for storing images I can always insert the images, independent of my current location in subfolders. And by allowing relative in-text references, I can move/export my notes without breaking links. This also means I can preview my files with iamcco/markdown-preview.nvim (written for nvim, but works in vim, which I use).

[ferrine]

Nice. Is it ready to merge or any issues left?

[FlorianWanders]

I've been using it on my branch without issues.

[ferrine]

Good to go