Added Copyright header for sonar properties file

Rob Tjalma · Rob Tjalma · commit 3faa2d21dfd6 · 2021-05-06T14:50:24.000+02:00
Signed-off-by: Rob Tjalma &lt;rob@tjalma.com&gt;
diff --git a/sonar-project.properties b/sonar-project.properties
@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2021 Alliander N.V.
+#
+# SPDX-License-Identifier: Apache-2.0
+
 # Properties for SonarCloud to recognize the project
 sonar.projectKey=com-pas_compas-sct
 sonar.organization=com-pas
