diff --git a/generate_config_pages.py b/generate_config_pages.py
index 6ba25a3378..956923e2c6 100644
--- a/generate_config_pages.py
+++ b/generate_config_pages.py
@@ -76,7 +76,7 @@ def extract_property_info(properties):
 
 
 def generate_html_table(table_name, rows):
-    html_table = '#### ' + table_name + '\n\n'
+    html_table = '## ' + table_name + '\n\n'
     html_table += '<table>\n'
     html_table += '\t<thead>\n' \
                   '\t\t<tr>\n' \
diff --git a/pull_request_template.md b/pull_request_template.md
index 1ec37a3f58..934e57a9fe 100644
--- a/pull_request_template.md
+++ b/pull_request_template.md
@@ -2,6 +2,26 @@
 
 The documentation updated for ...
 
+## Fonts annotation
+
+1. When adding new pages to the documentation, it is necessary to follow the hierarchy of headings, starting with h2
+2. The main section heading is set via h2.
+3. All nested headings should follow the structure and use:
+ h3 - for subsections inside h2
+ h4 - for subsections inside h3 and so on
+
+Here is an example (https://thingsboard.io/docs/pe/user-guide/rbac/) of correct headings structure:
+'## Roles'
+'### Creating a new role'
+'### Generic roles'
+'#### Example'
+'#### Permissions'
+'### Group roles'
+'#### Example'
+'## Solution example for smart buildings: separate user groups per facility'
+
+Check font-size of yours button it should be 16px, here is an example https://thingsboard.io/docs/pe/getting-started-guides/what-is-thingsboard/
+
 ## Link checker
 
 The links will be checked by the build agent automatically once you create or update your PR.