Fix typo

Author: meatballs

CHANGELOG.rst

@@ -6,7 +6,7 @@ v0.8.0 (2017-08-21)
 * Bug Fix: Remove use of strings for Slot.starts_at
 
 * New Feature: Unavailability and clashes can now be defined for events as well
-as people
+  as people
 
 v0.7.0 (2017-08-20)
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