Update CHANGES.txt

Conengmo · web-flow · commit 38e14786d071 · 2019-05-02T20:23:33.000+02:00
diff --git a/CHANGES.txt b/CHANGES.txt
@@ -22,6 +22,7 @@ API changes
 Bug fixes
 
 - Fix broken attribution for built-in tiles (FabeG #1128)
+- Fix broken prefer_canvas option of `Map` (FabeG #1133)
 
 0.8.3
 ~~~~~
