static site generator from MD/wikitext/YML

there are many like it, but this one's mine

npm run serve

Watches source and meta folder; on change, writes HTML to build folder.

Optional environment variables:

• SOURCE: path to the source folder, default ${cwd}/source
• META: path to the meta folder, default ${cwd}/meta
• BUILD: path to the build folder, default ${cwd}/build

npm start

Defaults:

• source: the "source" directory in cwd
• meta: the "meta" directory in cwd
• output: the "build" directory in cwd

This is not very useful. Will make these configurable.

SOURCE folder should have at least an index.md in it