docs: remove #ext-pages channel (#466)

Signed-off-by: JustaSqu1d <[email protected]>

docs/extensions/pages/paginator-basics.mdx

@@ -156,4 +156,4 @@ For a comprehensive list of examples showing all `Paginator` functionality, plea
 
 ## Support and Feedback
 If you have any questions, suggestions, or feedback for `ext.pages`, please join the
-[discord server](https://discord.gg/pycord) and check out the #ext-pages channel.
+[Discord server](https://discord.gg/pycord).