Prepare to release v0.1.4 (#164)

Update release notes in preparation for tagging and building v0.1.4. This is mainly a result of maintaining compatibility with a major lxml update.

Author: Mr0grog

docs/source/release-history.rst

@@ -2,13 +2,17 @@
 Release History
 ===============
 
-In Development
---------------
+Version 0.1.4 (2024-01-01)
+--------------------------
+
+This is a minor release that updates some of the lower-level parsing and diffing tools this package relies on:
 
 - Updates the diff-match-patch implementation we rely on for simple text diffs to `fast_diff_match_patch v2.x <https://pypi.org/project/fast-diff-match-patch/>`_. (:issue:`126`)
 
 - Fix misconfigured dependency requirements for html5-parser. This should have no user impact, since there are no releases (yet) in the version range we were accidentally allowing for. (:issue:`126`)
 
+- Support lxml v5.x. (:issue:`163`)
+
 
 Version 0.1.3 (2022-04-18)
 --------------------------