CONTRIBUTING: readd example for PKG_LICENSE_FILE

Signed-off-by: Steven Barth <steven@midlink.org>

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index b4a36f97ad6e6cd07e993044d7c83f094589ec42..884fd592fedfa8f9b333151a9dfdb8c277b7c186 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -17,6 +17,7 @@ Makefile contents should contain:
 * A PKG_LICENSE tag declaring the main license of the package.
     (E.g.: PKG_LICENSE:=GPL-2.0+) Please use SPDX identifiers if possible (see list at the bottom).
 * An optional PKG_LICENSE_FILE including the filename of the license-file in the source-package.
+    (E.g.: PKG_LICENSE_FILE:=COPYING)
 
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