Update changelog (also for #544)

Author: krassowski

CHANGELOG.md

@@ -1,5 +1,15 @@
 ## CHANGELOG
 
+### `@krassowski/jupyterlab-lsp 3.4.2` (unreleased)
+
+- bug fixes:
+
+  - prevents throwing a highlights error when adding new cell with <kbd>Shift</kbd> + <kbd>Enter</kbd> ([#544])
+  - fixes IPython `pinfo` and `pinfo2` (`?` and `??`) for identifiers containing `s` ([#547])
+
+[#544]: https://github.com/krassowski/jupyterlab-lsp/pull/544
+[#547]: https://github.com/krassowski/jupyterlab-lsp/pull/547
+
 ### `jupyter-lsp 1.1.4` (2020-02-21)
 
 - bug fixes: