website: Add free software definition.

* website/free-software.md: New file.
* website/haunt.scm (static-pages): Add it.
* website/index.md: Refer to it.

1 files changed, 3 insertions, 3 deletions

diff --git a/index.md b/index.md
index 60355e2..f6724e2 100644
--- a/index.md
+++ b/index.md
@@ -23,9 +23,9 @@ highlights:
     project are subject to its [code of
     conduct](/en/documents/code-of-conduct).
   - GNU’s Novelty is Unequaled — We contribute to projects that go back
-    to the roots of free software, some of us even know what “CVS”
-    means.  These projects and newer ones are leading in their own
-    domain and we plan to keep it that way.
+    to the roots of [free software](/en/documents/free-software), some
+    of us even know what “CVS” means.  These projects and newer ones are
+    leading in their own domain and we plan to keep it that way.
   - GNU Needs U! — It’s about building a software commons to empower
     computer users.  We need you — as a user, developer, speaker,
     coordinator, translator, system administrator: if you share [our