[ci skip] Fix a changelog link
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index c7bd502..559c128 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -16,7 +16,7 @@
- Added ``E_PARSE`` to the list of error levels detected by the shutdown handler.
- Updated :doc:`Inflector Helper <helpers/inflector_helper>` :php:func:`is_countable()` with more words.
- Updated :doc:`common function <general/common_functions>` :php:func:`set_status_header()` with new status codes from IETF RFCs
- `2817 https://tools.ietf.org/html/rfc2817>`_ (426)
+ `2817 <https://tools.ietf.org/html/rfc2817>`_ (426)
and `6585 <https://tools.ietf.org/html/rfc6585>`_ (428, 429, 431, 511).
Bug fixes for 3.1.1