Add License Info on a per-file basis

.github/docs/legal/License-headers.md

@@ -0,0 +1,46 @@
+# License Header Format
+
+Within TrueCharts we sometimes use code thats has a different license from the rest of the project.
+When there is not already a license header present, we use these standard license headers.
+
+##### TPL
+```
+{{/*
+Licensed 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.
+
+`SPDX-License-Identifier: Apache-2.0`
+
+This file is considered to be modified by the TrueCharts Project.
+*/}}
+```
+
+##### YAML
+```
+##
+# Licensed 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.
+#
+# `SPDX-License-Identifier: Apache-2.0`
+#
+# This file is considered to be modified by the TrueCharts Project.
+##
+```