Add PMSH ChangeLog

Issue-ID: DCAEGEN2-1820
Signed-off-by: dfarrelly <david.farrelly@est.tech>
Change-Id: I031e1e42b0c91c20bb6fe67831b50a139f58238c
diff --git a/components/pm-subscription-handler/ChangeLog.md b/components/pm-subscription-handler/ChangeLog.md
new file mode 100644
index 0000000..2d9c89a
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+++ b/components/pm-subscription-handler/ChangeLog.md
@@ -0,0 +1,10 @@
+# Change Log
+
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+## [1.0.0]
+
+* Initial release of the PM Subscription Handler.