Move around files so the repo will be organized as a monorepo.

tools/amend-readme/src/md-format-tools.mjs

@@ -0,0 +1,31 @@
+export class MdCol {
+	constructor(sectionName) {
+		this.data = "";
+		this.sectionName = sectionName;
+		this.matchRegex = new RegExp(
+			`^([ \\t]*)<!-- BEGIN ${sectionName} -->\\n[\\s\\S]*?<!-- END ${sectionName} -->\\n`,
+			`m`
+		);
+	}
+	log(...s) {
+		this.data += s.join("") + "\n";
+	}
+	apply(s) {
+		return s.replace(this.matchRegex, (m, $1) => {
+			return (
+				`<!-- BEGIN ${this.sectionName} -->\n` +
+				`<!-- THIS SECTION IS AUTOMATICALLY GENERATED. DO NOT EDIT. -->\n\n` +
+				this.data +
+				`\n<!-- END ${this.sectionName} -->\n`
+			).replace(/^/gm, $1);
+		});
+	}
+}
+
+export function ImgX(path, w) {
+	const widthProp = w ? ` width=${w}` : ``;
+	return (
+		`<img src="${path}.light.svg#gh-light-mode-only"${widthProp}/>` +
+		`<img src="${path}.dark.svg#gh-dark-mode-only"${widthProp}/>`
+	);
+}