fix expected but absent literal block

NYUCCL · Mar 14, 2021 · e631e87 · e631e87
1 parent 7c19543
commit e631e87
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/doc/tutorials/heroku.rst b/doc/tutorials/heroku.rst
@@ -97,7 +97,7 @@ database for collecting data:
     .. important::
       psiTurk prefers environment variables over all other config file settings.
       Most environment settings need to prepend ``PSITURK_`` to the corresponding
-      config setting name, with the exception of two environment variables::
+      config setting name, with the exception of two environment variables:
 
       1. ``DATABASE_URL``
       2. ``PORT``