diff --git a/FmhyChecker.pyw b/FmhyChecker.pyw
index 5c4ad38..a3cac77 100644
--- a/FmhyChecker.pyw
+++ b/FmhyChecker.pyw
@@ -1,14 +1,8 @@
 """
-FMHY Dupe Checker
-v1.17
+== FMHY Dupe Checker ==
+== by cevoj35548 ==
 """
 
-
-__author__ = "cevoj"
-__version__ = "1.17"
-
-
-# networking
 import grequests
 import requests
 import urllib3
@@ -16,7 +10,6 @@ from fake_headers import Headers
 from http.client import responses as status_codes
 from requests.exceptions import ConnectTimeout, ReadTimeout, ConnectionError, SSLError
 
-# gui
 from PyQt5 import QtCore, QtGui, QtWidgets
 from PyQt5.QtCore import pyqtSignal
 from PyQt5 import uic
@@ -25,7 +18,6 @@ import ctypes as ct
 import darkdetect
 from pyperclip import copy
 
-# builtins
 import sys
 import os
 import re
@@ -39,6 +31,10 @@ from dataclasses import dataclass
 from typing import Union
 
 
+__author__ = "cevoj"
+__version__ = "1.17"
+
+
 # disable ssl warnings
 urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 # fake headers
@@ -65,8 +61,8 @@ class StatusResp:
 
 
 class LinkTest:
-    chunk_size = 50  # number of links to test at once
-    statusapi_url = b64decode('aHR0cHM6Ly9iYWNrZW5kLmh0dHBzdGF0dXMuaW8vYXBp').decode()
+    chunk_size      = 50  # number of links to test at once
+    statusapi_url   = b64decode('aHR0cHM6Ly9iYWNrZW5kLmh0dHBzdGF0dXMuaW8vYXBp').decode()
     statusapi_headers = {
         'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0',
         'Accept': 'application/json, text/plain, */*',
@@ -103,8 +99,7 @@ class LinkTest:
     def handle_req(urls, items, callback, error_sig):
         # process the request & send back to main event loop
         dist_cnxns.put(1)  # wait for when <3 instances of handle_req are running. blocks if full
-        for item in items:
-            item.setText(2, 'Testing...')
+        LinkTest.set_testing(items)
         reqs = [
             grequests.head(url, headers=headers.generate(), timeout=5, allow_redirects=True, verify=False)
             for url in urls
@@ -130,8 +125,7 @@ class LinkTest:
     def thirdparty_req(urls, items, callback, error_sig):
         # process the request & send back to main event loop
         dist_cnxns.put(1)  # wait for when <3 requests are running. blocks if full
-        for item in items:
-            item.setText(2, 'Testing...')
+        LinkTest.set_testing(items)
         try:
             resp = requests.post(
                 LinkTest.statusapi_url,
@@ -169,6 +163,12 @@ class LinkTest:
         )
         # spawn thread to handle request
         thread.start()
+    
+    @staticmethod
+    def set_testing(items):
+        with suppress(RuntimeError):
+            for item in items:
+                item.setText(2, 'Testing...')
 
 
 class UI(QMainWindow):
diff --git a/README.md b/README.md
index fc955d0..2d16f72 100644
--- a/README.md
+++ b/README.md
@@ -29,22 +29,40 @@ Run `FmhyChecker.pyw`
 
 ## Usage
 
-### Comparing and copying links
+### Comparing links to wiki
 
-This tool takes links inputted into the field on the left, and checks if they are not already present in the wiki. Links will be automatically pulled using regex.
+This tool takes links inputted into the field on the left, and checks if they are not already present in the wiki.
 
-*Note that the ReGex is designed to ignore trailing `/`, `http`/`https`, and `www`/`ww1`...`2`...etc*
+**Dupes** ***(already in wiki)*** will be indicated with a ❌, and **Unique links** ***(NOT in wiki)*** will have a ✅.
 
-*Dupes* will be indicated with a ❌, and *unique* links will have a ✅. Once the scan is complete, the `Copy ❌` and `Copy ✅` buttons will be ungreyed, allowing you to copy all *dupe* or *unique* flagged links separated by a newline (`\n`).
+Links will be automatically pulled using regex. The regex is designed to ignore trailing `/`, `http`/`https`, and `www`/`ww1`...`2`...etc to be as flexible as possible.
 
+### Copying links
+
+The UI provides 3 buttons to copy links to your clipboard.
+
+| Button | What it copies |
+|-|-|
+| `Copy ❌` | Copies *duped* (❌) links |
+| `Copy ✅` | Copies *unique* (✅) links |
+| `Copy 🔍` | Only links that are *unique* (✅) **AND** *tested* with a *successful* response code (🟢)
 
 ### Broken link tester
 
-![Usage video here](https://i.imgur.com/9BhHsaY.mp4)
+**Usage video**
 
-Selecting links and clicking `Test` will the URL's redirect chain. View a URL by hovering over its status code.
+https://github.com/fmhy/dupe-checker/assets/125338382/e144e529-db6b-4989-a90e-e27f6881efb6
 
-The `Copy 🔍` button will copy all links that are *unique* (✅) **and** *tested* to have successful responses (read more about status codes [here](https://httpstatus.io/http-status-codes)).
+Selecting links and clicking `Test` will the fetch the URL's redirect chain. View more information by *hovering* over a status code.
+
+| Status code | Indication |
+|-|-|
+| 🟢 `200`-`204` | Successful |
+| 🔵 `301`-`307` | Redirect |
+| 🟠 `400`-`410` | Client error |
+| 🔴 `500`-`504` | Server error |
+
+Read more about status codes [here](https://httpstatus.io/http-status-codes).
 
 
 ### CSV Exports