docs: Add release notes for 0.9.5 (#3501)

Author: max-sixty

CHANGELOG.md

@@ -1,10 +1,16 @@
 # PRQL Changelog
 
-## [unreleased]
+## 0.9.5 — 2023-09-12
 
-**Language**:
+0.9.5 adds a line-wrapping character, fixes a few bugs, and improves our CI. The
+release has 77 commits from 8 contributors. Selected changes are below.
 
-**Features**:
+Look out for some conference talks coming up over the next few weeks, including
+[QCon SF on Oct 2](https://qconsf.com/presentation/oct2023/prql-simple-powerful-pipelined-sql-replacement)
+and
+[date2day on Oct 12](https://www.data2day.de/veranstaltung-21353-0-prql-a-modern-language-for-data-transformation.html).
+
+**Language**:
 
 - A new line-wrapping character, for lines that are long and we want to break up
   into multiple physical lines. This is slightly different from from many
@@ -43,8 +49,6 @@
 - Fix a corner-case in handling precedence, and remove unneeded parentheses in
   some outputs (@max-sixty, #3472)
 
-**Documentation**:
-
 **Web**:
 
 - Any panics in the compiler are now printed to the console (@max-sixty, #3446)
@@ -60,6 +64,8 @@
 
 **New Contributors**:
 
+- @davidot, with #3450
+
 ## 0.9.4 — 2023-08-24
 
 0.9.4 is a small release with some improvements and bug fixes in the compiler