tweaks to "Signing off your commits"

diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 3f8be7ac865aeccf6b98103cea324babd30f5957..623a8c8b8cf96989c370e65374d61b154d8d9a89 100644 (file)
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -18,6 +18,13 @@ Instead, either
 Signing off your commits
 ========================
 
-You must certify the contents of ``DEVELOPER-CERTIFICATE`` for your
-contribution.  Add a ``Signed-off-by`` line to your commit message by
-passing the ``-s`` option to git-commit(1).
+Contributions are accepted upstream under the terms set out in the
+file ``COPYING``.  You must certify the contents of the file
+``DEVELOPER-CERTIFICATE`` for your contribution.  To do this, append a
+``Signed-off-by`` line to end of your commit message.  An easy way to
+add this line is to pass the ``-s`` option to git-commit(1).  Here is
+an example of a ``Signed-off-by`` line:
+
+::
+
+    Signed-off-by: Sean Whitton <spwhitton@spwhitton.name>