diff --git a/docs/source/contributing.rst b/docs/source/contributing.rst
index 5a1988f..6c3ce79 100644
--- a/docs/source/contributing.rst
+++ b/docs/source/contributing.rst
@@ -1,2 +1,18 @@
 Contributing
 ============
+
+We welcome contributions via [GitHub](https://github.com/CenterForOpenScience/jamdb).
+
+Before submitting your pull request, please make sure that all unit tests are passing, by running the command below:
+
+.. code:: bash
+
+    behave
+
+To preview changes to the documentation, install the requirements in dev-requirements.txt, then run the following:
+
+.. code:: bash
+
+    cd docs
+    make html
+
diff --git a/features/steps/plugins.py b/features/steps/plugins.py
index 4523a76..1bd6561 100644
--- a/features/steps/plugins.py
+++ b/features/steps/plugins.py
@@ -19,8 +19,11 @@ def assert_called(context):
     if actual.get('from'):
         mail.set_from(actual.get('from'))
 
-    token = mail.add_substitution.call_args[0][1]
-    mail.add_substitution.assert_called_with(':token', token)
+    token = mail.add_substitution.call_args_list[0][0][1]
+    mail.add_substitution.assert_any_call(':token', token)
+
+    user = mail.add_substitution.call_args_list[1][0][1]
+    mail.add_substitution.assert_any_call(':user', user)
 
     mail.add_filter.assert_any_call('templates', 'enable', 1)
     mail.add_filter.assert_any_call('templates', 'template_id', actual['template'])
diff --git a/jam/plugins/user.py b/jam/plugins/user.py
index 9c73dd7..1ae74e1 100644
--- a/jam/plugins/user.py
+++ b/jam/plugins/user.py
@@ -198,10 +198,11 @@ def post(self, handler):
 
             mail.set_from(self.from_email)
             mail.add_substitution(':token', user.token.decode())
+            mail.add_substitution(':user', user.id)
             mail.add_filter('templates', 'enable', 1)
             mail.add_filter('templates', 'template_id', self.template)
             # Sendgrid requires subject text and html to be set to a non falsey value
-            # Its highly recommened that you overwrite these in your own templates
+            # It is highly recommended that you overwrite these in your own templates
             mail.set_subject('JamDB password reset')
             mail.set_text('Your temporary token is :token')
             mail.set_html('Your temporary token is :token')