add CHANGELOG.md for 1.0.0 release (#324)
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+<!--
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements. See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License. You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+-->
+
+# OpenWhisk Catalog
+
+## 1.0.0
+ + Remove Weather Company Data package. (#322)
+ + Enhance GitHub webhook introducing allowing usage for GitHub Enterprise. (#3
+
+## 0.11.0
+ + Port websocket package to nodejs:10 (#315)
+ + Fix and provide clarity on access token scopes needed (#314)
+ + invoke.swift and hello.promises also need provide-api-key (#311)
+ + Fix countdown sample action (#310)
+ + Remove non-wskdeploy based package installation scripts (#308)
+ + Use needle to replace request (#304)
+
+## 0.10.0-incubating
+ + First Apache release
