feat: add Eporner and Txxx along with minor fixes (#16)

Co-authored-by: Pi Patel <pi.patel@gmail.com>

test/test.ts

@@ -2,7 +2,7 @@ import c from "../src/utils/options";
 import p from "phin";
 
 for (const url of 
-  [c.PORNHUB, c.XNXX, c.REDTUBE, c.XVIDEOS, c.XHAMSTER, c.YOUPORN]) {
+  [c.PORNHUB, c.XNXX, c.REDTUBE, c.XVIDEOS, c.XHAMSTER, c.YOUPORN, c.EPORNER, c.TXXX]) {
   p({ url }).then(res => {
     if (res.statusCode !== 200) {
       console.log(`${url} is not available, status code: ${res.statusCode}, check the sites or your own user-agent`);