Avoid finding temp files like .readme.md.swp (#184)

Author: WillForan

lib/find-readme-file.js

@@ -3,7 +3,7 @@ import path from 'node:path';
 
 export default function findReadmeFile(directory) {
 	const readmeFile = fs.readdirSync(directory).find(filename => (
-		/readme|readme\.md|readme\.markdown|readme.txt/i.test(filename)
+		/^(readme|readme\.md|readme\.markdown|readme.txt)$/i.test(filename)
 	));
 
 	if (readmeFile) {