add: wrap commands better

[metaist]

I need some happy medium between readable and copy-pastable. Some examples:

$ rm -rf docs; \
  mkdir -p docs; \
  pdoc \
    --html \
    --output-dir docs \
    --config sort_identifiers=False \
    --config show_inherited_members=True \
    --force src/$(basename $(pwd)); \
  mv docs/**/* docs/; \
  touch docs/.nojekyll

$ git commit -am "release: $1";\
  git tag $1;\
  git push;\
  git push --tags;\
  git checkout main;\
  git merge --no-ff --no-edit prod;\
  git push