Add contents list to top of page in statistics-for-vaccinations-and-schools.md (#175)

Author: melissagraham-create

app/guide/statistics-for-vaccinations-and-schools.md

@@ -4,6 +4,8 @@ theme: Statistics and reports
 order: 33
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+[[toc]]
+
 The **Reports** area of Mavis lets you:
 
 - view consent and vaccination data for children, schools and local authorities in your area