Create .asf.yaml (#3873)

Add repo description control file

.asf.yaml

@@ -0,0 +1,28 @@
+  
+#
+# 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.
+#
+
+github:
+  description: APM, Application Performance Monitoring System
+  homepage: https://skywalking.apache.org/
+  labels:
+    - skywalking
+    - observability
+    - apm
+    - distributed-tracing
+    - service-mesh
+    - dapper