adding some time.sleep(2) to stay within slack rate limits for posting messages

app.py

@@ -2,6 +2,7 @@ import discord
 import threading
 import os
 import gradio as gr
+import time
 from discord.ext import commands
 from slack_sdk import WebClient
 from slack_sdk.errors import SlackApiError
@@ -257,6 +258,7 @@ def send_daily_pings():
                 unfurl_links=False,
                 unfurl_media=False
             )
+            time.sleep(2) # https://api.slack.com/apis/rate-limits
             main_ts = main_message['ts']
             for ping in pings:
                 slack_client.chat_postMessage(
@@ -266,6 +268,7 @@ def send_daily_pings():
                     unfurl_links=False,
                     unfurl_media=False
                 )   
+                time.sleep(2) # https://api.slack.com/apis/rate-limits
 
         daily_pings = []  # reset after posting