Added reading time timer

src/plugins/remarkReadingTime.ts

@@ -0,0 +1,11 @@
+import type { RemarkPlugin } from "@astrojs/markdown-remark";
+import { toString } from "mdast-util-to-string";
+import getReadingTime from "reading-time";
+
+export function remarkReadingTime(): RemarkPlugin {
+	return function (tree, { data }) {
+		const textOnPage = toString(tree);
+		const readingTime = getReadingTime(textOnPage);
+		data.astro.frontmatter.minutesRead = readingTime.text;
+	};
+}