Add some SPDX headers.

[open-adventure.git] / history.adoc

diff --git a/history.adoc b/history.adoc
index ea237e9b3a6cb6600aa1c4dd77b5c3d45af8bc21..1e4028c9010dd0cbf679671d12a4d2e1a7f55293 100644 (file)
--- a/history.adoc
+++ b/history.adoc
@@ -1,5 +1,7 @@
 = A brief history of Colossal Cave Adventure =
 by Eric S. Raymond
+// SPDX-FileCopyrightText: Eric S. Raymond <esr@thyrsus.com>
+// SPDX-License-Identifier: CC-BY-4.0
 
 Adventure is the fons et origo of all later dungeon-crawling computer
 games, the granddaddy of interactive fiction, and one of the hallowed