Fix Sphinx compilation warnings
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 99cdf4d..bafb2bd 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -751,7 +751,7 @@
- Partially fixed a bug (#261) - UTF-8 class method ``clean_string()`` generating log messages and/or not producing the desired result due to an upstream bug in iconv.
- Fixed a bug where ``CI_Xmlrpcs::parseRequest()`` could fail if ``$HTTP_RAW_POST_DATA`` is not populated.
- Fixed a bug in :doc:`Zip Library <libraries/zip>` internal method ``_get_mod_time()`` where it was not parsing result returned by ``filemtime()``.
-- Fixed a bug (#3161) - :doc:`Cache Library <libraries/cache>` methods `increment()`, `decrement()` didn't auto-create non-existent items when using redis and/or file storage.
+- Fixed a bug (#3161) - :doc:`Cache Library <libraries/caching>` methods `increment()`, `decrement()` didn't auto-create non-existent items when using redis and/or file storage.
- Fixed a bug (#3189) - :doc:`Parser Library <libraries/parser>` used double replacement on ``key->value`` pairs, exposing a potential template injection vulnerability.
Version 2.2.0