IDEAS: SPDX

diff --git a/IDEAS.md b/IDEAS.md
index 76d5f97150562b823cd142f0bcd06a6997497367..29f3f6f74958c26adc1c536d7afa270af707ebdb 100644 (file)
--- a/IDEAS.md
+++ b/IDEAS.md
@@ -8,6 +8,7 @@ Ideas
   * Public domain
   * Creative Commons
   * Perl
+  * Add [Software Package Data Exchange (SPDX)](https://spdx.org) ([about](https://lwn.net/Articles/739183/)) into files
 * Metafiles:
   * Changelog formats
   * Semver