diff --git a/README.md b/README.md
index ba5a21f..a88daf9 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ global:                                                         # settings to us
 services: # service definition
   github_release:                                               # service name - referenced within the 'feeds' definition
     service_feed: https://github.com/{{ name }}/releases.atom   # where the rss feed is located
-    service_url: https://github.com/{{ name }}                  # used in the sub-title to link to the feed
+    service_url: https://github.com/{{ name }}                  # used in the subtitle to link to the feed
     ntfy_icon: https://github.githubassets.com/images/modules/logos_page/GitHub-Mark.png
     ntfy_subtitle_prefix: 🤖 GitHub Release
     ntfy_subtitle_seperator: by
@@ -65,12 +65,13 @@ feeds: # feeds to monitor from those services
   [...]
 
 config:
-  cache_location: ~/.cache
+  cache_location: /data
   run_on_startup: false
   log_level: info
   schedule: '*/30 * * * *'                                      # crontab style expression - concurrent jobs are not possible
   service_wait: 60                                              # time to wait between services
   feed_wait: 5                                                  # time to wait between posts of one feed
+  max_message_size: 4096                                        # max size of message for pagenation
   max_attempts: 3                                               # retry to send message; consider failed after
   retry_wait: 30                                                # time to wait between retrys
 ```
diff --git a/rss-ntfy/bot.py b/rss-ntfy/bot.py
index a832684..1741dc9 100755
--- a/rss-ntfy/bot.py
+++ b/rss-ntfy/bot.py
@@ -56,7 +56,7 @@ def custom_validation(config):
 
     for feed_name, feed_config in config["feeds"].items():
         if not "ntfy_topic" in feed_config:
-            if not "ntfy_topic" in config["services"][feed_name]:
+            if not "ntfy_topic" in config["services"][feed_name] and not "ntfy_topic" in config["global"]:
                 raise jsonschema.ValidationError("The property 'ntfy_topic' must be present in either 'global', 'feeds', or 'services'.")
 
 
@@ -88,12 +88,12 @@ def update_config(init=False):
         if custom_config is not None:
             if logger is not None:
                 logger.debug(f'custom_config": {json.dumps(custom_config)}')
-                logger.debug(f'custom_config": {json.dumps(CONFIG)}')
+                logger.debug(f'default_config": {json.dumps(CONFIG)}')
 
             merged_config = merge_configurations(copy.deepcopy(DEFAULT_CONFIG), custom_config)
 
             if logger is not None:
-                logger.debug(f'custom_config": {json.dumps(merged_config)}')
+                logger.debug(f'merged_config": {json.dumps(merged_config)}')
 
             json_schema = load_schema(schema_path)