working; test no embed / previews for links

app.py

@@ -153,7 +153,7 @@ def send_daily_pings():
     if daily_pings:
         print("sending daily pings...")
         # combine into one message
-        combined_message = '\n'.join(f"{ping['author']} in #{ping['channel']} said: {ping['content']} (link: {ping['url']})" for ping in daily_pings)
+        combined_message = '\n'.join(f"{ping['author']} in #{ping['channel']} said: {ping['content']} (link: <{ping['url']}>)" for ping in daily_pings)
         #await post_to_slack(None, combined_message, SLACK_CHANNEL_ID_TEST, None, None, None)