update changelog for 0.11.1
diff --git a/docs/changelog.md b/docs/changelog.md
index a1af121..8c33de7 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -1,6 +1,14 @@
Changelog
=========
+0.11.1 - 30 March 2023
+----------------------
+* fix missing testdata in packages
+
+0.11.0 - 27 March 2023
+----------------------
+* switched to using Rust implementation for all algorithms
+
0.10.0 - 25 March 2023
---------------------
* removed rarely-used `porter_stem` function, better implementations exist
