Update bin/validate-redirects.ts

Author: kodster28

bin/validate-redirects.ts

@@ -7,6 +7,8 @@ async function main() {
 	let numUrlsWithFragment = 0;
 	let numDuplicateRedirects = 0;
 	let numNonSlashedRedirects = 0;
+	
+	const validEndings = ["/", "*", ".xml", ".md", ".json", ".html"];
 
 	const redirectSourceUrls: string[] = [];