diff --git a/getcalendar.sh b/getcalendar.sh
index 1c7c2c2..260b853 100644
--- a/getcalendar.sh
+++ b/getcalendar.sh
@@ -1,7 +1,12 @@
+#!/usr/bin/env bash
+
+# Fetch calendar data; will be stored as calendar.json
+
 CALENDAR_ID="nerseigospses068jd57bk5ar8@group.calendar.google.com"
 API_KEY="AIzaSyDJkXq1faq2G5NkFkFTh9Sikdpc2YXTVXs"
 NOW=$(date '+%Y-%m-%dT%H:%M:%SZ')
 OPTS="?key=${API_KEY}&timeMin=${NOW}&singleEvents=true&orderBy=startTime&timezone=UTC&maxResults=20"
+
 curl -sS -o calendar.json "https://www.googleapis.com/calendar/v3/calendars/${CALENDAR_ID}/events${OPTS}" \
   -H 'accept: application/json, text/javascript, */*; q=0.01' \
   -H 'origin: https://events.apache.org'