Add initial changelog

[doc only]
2019-10-03 12:42:19 +02:00 · 2019-10-03 12:42:19 +02:00 · 7cfcc6dda3
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -0,0 +1,11 @@
+# Unreleased changes
+
+[Full changelog](https://github.com/mozilla/glean/compare/v0.0.1-TESTING1...master)
+
+# v0.0.1-TESTING1 (2019-10-02)
+
+[Full changelog](https://github.com/mozilla/glean/compare/95b6bcc03616c8d7c3e3e64e99ee9953aa06a474...v0.0.1-TESTING1)
+
+### General
+
+First testing release.