apply color scheme to highlight

deploy: apk add only if needed

gemini: reverse order

gemini: use ascii table

gemini: append date

md2gemini: force disable link only detection

add gemini index

add gemini text build

highlight color tweaks

fix rougify

ci: remove unneeded command, use nproc, use alpine

fix typo

fix ci

gitlab-ci: update submodule

gitlab-ci: rougify: switch to base16.dark

gitlab-ci: rougify: append to main.scss

gitlab-ci: fix seq

gitlab-ci: make rouge style

gitlab-ci: parallel gem install

gitlab-ci; fix encoding