v1.8.0

Added the this flag. Now you can download a specific chapter using the this flag. Try:

mdx dl --this mangadex.org/chapter/b5461c55-6bb7-4d53-9534-9caabf8c069f
# or
mdx dl -s mangadex.org/chapter/b5461c55-6bb7-4d53-9534-9caabf8c069f
# or
mdx dl mangadex.org/chapter/b5461c55-6bb7-4d53-9534-9caabf8c069f

Use it if mdx can't download your chapter provided by the -c flag.

To get a link to the chapter, you need to open the manga page, then open the chapter from the list, and copy the link.