Add Prior Art section, strengthen motivation arguments #429

	---
Check failure on line 1 in .github/workflows/lint.yaml View workflow run for this annotation GitHub Actions / .github/workflows/lint.yaml Invalid workflow file `(Line: 13, Col: 9): There's not enough info to determine what you meant. Add one of these properties: run, shell, uses, with, working-directory, (Line: 16, Col: 9): There's not enough info to determine what you meant. Add one of these properties: run, shell, uses, with, working-directory, (Line: 25, Col: 9): There's not enough info to determine what you meant. Add one of these properties: run, shell, uses, with, working-directory`
	name: lint spec

	jobs:
	test:
	name: Ensure that we can build the spec
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@v4

	- name: Install ecmarkup
	- run: npm install --global ecmarkup

	- name: ensure no line starts with tabs
	- run: \|
	for f in *emu; do
	if ! [ grep '^\t' "$f" ]; then
	echo "$f has lines that begin with a tab";
	exit 1;
	fi
	done

	- name: Try to generate spec, being strict
	- run: ecmarkup --lint-spec --strict spec.emu out.html

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