readme: fix formatting

Author: jkhsjdhjs

README.md

@@ -147,10 +147,12 @@ For more information on URL path templates in aiohttp, see https://docs.aiohttp.
 ### Escaping
 HTML-escaping is performed on all values automatically.
 To prevent a value from being escaped, use the `safe` filter: `{{ foo | safe }}`
+
 Refer to the Jinja2 docs for more information on autoescaping: https://jinja.palletsprojects.com/en/stable/templates/#working-with-automatic-escaping
 
 > [!WARNING]
 > While HTML is escaped automatically, markdown is not. It needs to be escaped manually via the `escape_md` filter: `{{ foo | escape_md }}`
+>
 > This behavior will eventually change when Jinja2 allows custom autoescape functions (see [#13](https://github.com/jkhsjdhjs/maubot-webhook/issues/13) for more information).