--- a/README	Wed Jul 23 12:08:48 2014 +0200
+++ b/README	Sun Jul 13 21:54:03 2014 +0530
@@ -29,9 +29,19 @@
 ==========
 
 The simplest way to contribute is to issue a pull request on Bitbucket
-(https://bitbucket.org/marmoute/mutable-history). Please don't forget
-to update and run the tests when you fix a bug or add a feature. To
-run the tests:
+(https://bitbucket.org/marmoute/mutable-history). Alternatively, you
+can use the patchbomb extension to send email to mercurial
+devel. Please make sure to use the evolve-ext flag when doing so. You
+can use a command like this:
+
+    hg email --to mercurial-devel@selenic.com --flag evolve-ext --rev '<your patches>'
+
+See also
+http://mercurial.selenic.com/wiki/ContributingChanges#Patch_descriptions
+for guidelines on the patch description.
+
+Please don't forget to update and run the tests when you fix a bug or
+add a feature. To run the tests:
 
     cd tests
     python run-tests.py --with-hg=/path/to/hg