docs: fix headings; move quirks to includes block'

Signed-off-by: NotAShelf <raf@notashelf.dev>
Change-Id: Ie853fc60a60c6ff6a945dc67560639ac6a6a6964

docs/manual/quirks/nodejs.md

@@ -0,0 +1,29 @@
+## NodeJS {#ch-quirks-nodejs}
+
+### eslint-plugin-prettier {#sec-eslint-plugin-prettier}
+
+[eslint-plugin-prettier]: https://github.com/prettier/eslint-plugin-prettier
+[not supposed to]: https://prettier.io/docs/en/comparison.html
+
+When working with NodeJS, which is _obviously_ known for its meticulous
+standards, most things are bound to work as expected but some projects, tools
+and settings may fool the default configurations of tools provided by **nvf**.
+
+If
+
+If [eslint-plugin-prettier] or similar is included, you might get a situation
+where your Eslint configuration diagnoses your formatting according to its own
+config (usually `.eslintrc.js`). The issue there is your formatting is made via
+prettierd.
+
+This results in auto-formatting relying on your prettier configuration, while
+your Eslint configuration diagnoses formatting "issues" while it's
+[not supposed to]. In the end, you get discrepancies between what your editor
+does and what it wants.
+
+Solutions are:
+
+1. Don't add a formatting config to Eslint, instead separate Prettier and
+   Eslint.
+2. PR the repo in question to add an ESLint formatter, and configure **nvf** to
+   use it.