diff --git a/doc/README.mdwn b/doc/README.mdwn
index 115feae..a0742f7 100644
--- a/doc/README.mdwn
+++ b/doc/README.mdwn
@@ -62,11 +62,7 @@ see [configuration for the Haskell newbie](https://propellor.branchable.com/hask
    Now they'll automatically update every 30 minutes, and you can
    `git commit -S` and `git push` changes that affect any number of
    hosts.
-10. Write some neat new properties and send patches to <propellor@joeyh.name>!  
-    Use `git commit --signoff` to certify that your additions to propellor
-    are released under its BSD license.  
-    See <https://propellor.branchable.com/contributing> for coding styles,
-    etc.
+10. Write some neat new properties and send patches!
 
 ## debugging
 
diff --git a/doc/index.mdwn b/doc/index.mdwn
index 5311baf..f5fd880 100644
--- a/doc/index.mdwn
+++ b/doc/index.mdwn
@@ -26,6 +26,8 @@ hosts =               --                  (o)  `
 
 Propellor is free software, licensed under the BSD license.
 
+You are encouraged to send patches and improve it. See [[contributing]].
+
 ## news
 
 [[!inline pages="news/* and !*/Discussion" show="4" archive=yes]]