Added missing scraping for XKCD 501 to 1000

Currently, the scraper would miss the XKCDs ranging from 501 to 1000 due to these being listed on a different page at explainxkcd.com. This change extends the scraper capabilities to include those.

Note that the full page starts at 1001, so there is no overlap between these three lists

scrapper.py

@@ -13,6 +13,9 @@ from bs4.element import Tag
 LIST_COMICS_500_URL = (
     "https://www.explainxkcd.com/wiki/index.php/List_of_all_comics_(1-500)"
 )
+LIST_COMICS_1000_URL = (
+    "https://www.explainxkcd.com/wiki/index.php/List_of_all_comics_(501-1000)"
+)
 LIST_COMICS_FULL_URL = (
     "https://www.explainxkcd.com/wiki/index.php/List_of_all_comics_(full)"
 )
@@ -184,7 +187,11 @@ async def main():
         # Get all comic urls
         comic_urls = await scap_comic_urls(
             session, LIST_COMICS_500_URL
-        ) + await scap_comic_urls(session, LIST_COMICS_FULL_URL)
+        ) + await scap_comic_urls(
+            session, LIST_COMICS_1000_URL
+        ) + await scap_comic_urls(
+            session, LIST_COMICS_FULL_URL
+        )
 
         # Scrap all comics asynchronously
         data = await asyncio.gather(