added config.json to make changing api base url easier

reply.py

@@ -4,15 +4,17 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 import mastodon
-import os, random, re
+import os, random, re, json
 import create
 from bs4 import BeautifulSoup
 
-api_base_url = "https://botsin.space"
+cfg = json.load(open('config.json', 'r'))
+
+api_base_url = "https://knzk.me"
 client = mastodon.Mastodon(
         client_id="clientcred.secret", 
         access_token="usercred.secret", 
-        api_base_url=api_base_url)
+        api_base_url=cfg['site'])
 
 def extract_toot(toot):
 	#copied from main.py, see there for comments