Update CHANGELOG for Firestore v0.13.5 (#1901)

wilhuff · web-flow · commit 1687ccf2a677 · 2018-10-03T07:02:07.000-07:00
diff --git a/Firestore/CHANGELOG.md b/Firestore/CHANGELOG.md
@@ -1,4 +1,6 @@
 # Unreleased
+
+# v0.13.5
 - [changed] Some SDK errors that represent common mistakes (such as permission
   denied or a missing index) will automatically be logged as a warning in
   addition to being surfaced via the API.
