fix doc warnings
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index b49ce20..e83598c 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -639,7 +639,7 @@
- Fixed a bug (#2380) - :doc:`URI Routing <general/routing>` method ``fetch_method()`` returned 'index' if the requested method name matches its controller name.
- Fixed a bug (#2388) - :doc:`Email Library <libraries/email>` used to ignore attachment errors, resulting in broken emails being sent.
- Fixed a bug (#2498) - :doc:`Form Validation Library <libraries/form_validation>` rule **valid_base64** only checked characters instead of actual validity.
-- Fixed a bug (#2425) - OCI8 :doc:`database <database>` driver's method ``stored_procedure()`` didn't log an error unless **db_debug** was set to TRUE.
+- Fixed a bug (#2425) - OCI8 :doc:`database <database/index>` driver's method ``stored_procedure()`` didn't log an error unless **db_debug** was set to TRUE.
- Fixed a bug (#2490) - :doc:`Database Class <database/queries>` method ``query()`` returning boolean instead of a result object when the PostgreSQL-specific *RETURNING* clause is used.
- Fixed a bug (#249) - :doc:`Cache Library <libraries/caching>` didn't properly handle Memcache(d) configurations with missing options.
- Fixed a bug (#180) - :php:func:`config_item()` didn't take into account run-time configuration changes.
@@ -656,7 +656,7 @@
- Fixed a bug (#2515) - ``_exception_handler()`` used to send the 200 "OK" HTTP status code and didn't stop script exection even on fatal errors.
- Fixed a bug - Redis :doc:`Caching <libraries/caching>` driver didn't handle connection failures properly.
- Fixed a bug (#2756) - :doc:`Database Class <database/index>` executed the MySQL-specific `SET SESSION sql_mode` query for all drivers when the 'stricton' option is set.
-- Fixed a bug (#2579) - :doc:`Query Builder <database/query_builder>`s "no escape" functionality didn't work properly with query cache.
+- Fixed a bug (#2579) - :doc:`Query Builder <database/query_builder>` "no escape" functionality didn't work properly with query cache.
- Fixed a bug (#2237) - :doc:`Parser Library <libraries/parser>` failed if the same tag pair is used more than once within a template.
- Fixed a bug (#2268) - :doc:`Security Library <libraries/security>` didn't properly match JavaScript events.
- Fixed a bug (#2143) - :doc:`Form Validation Library <libraries/form_validation>` didn't check for rule groups named in a *controller/method* manner when trying to load from a config file.