Fix YAML parse error

bodies/sutton-council/2022-05-05/config.yaml

@@ -1,6 +1,6 @@
 ---
 name: Full council election 2022
-reason: The whole council is usually elected every four years. This
-election was delayed by a year due to the Covid-19 pandemic.
+reason: "The whole council is usually elected every four years. This
+election was delayed by a year due to the Covid-19 pandemic."
 districts: 20
 seats: 55