Clarify use of treasures

Change-Id: I54dd77a6c24ae5d0f67be54658def24f1b93ae34

Author: LarsMichelsen

Diff for: doc/treasures/README.md

@@ -0,0 +1,22 @@
+Treasures
+=========
+
+This directory contains a collection of useful scripts, plugins and other tools
+that have been built by us, e.g. during consulting or development projects. We
+decided to share them with the community, as they might be useful for others as
+well.
+
+A few guidelines for this directory:
+
+* It is meant as a place to put things that we built and that are useful, but
+  that are not part of the main product. This can be scripts, plugins, or other
+  tools.
+* It is not meant to be a place for unfinished or untested code.
+* Things that are outdated can be removed without any deprecation or further notice.
+* Things in this directory are not officially supported by us. They are provided
+  "as is" and without any warranty. If you have questions or need help, feel free
+  to ask, but we might not be able to help you.
+* If you have a useful suggestion or improvement for a treasure, feel free to
+  open a pull request.
+* Even if we point you to a treasure in a support request or other
+  communication, we don't officially support it.