cal: added csv support to the README

diff --git a/cal/README.md b/cal/README.md
index ded1b33..c19f07c 100644 (file)
--- a/cal/README.md
+++ b/cal/README.md
@@ -13,7 +13,10 @@ The calendars are exported at
 
        http://example.com/cal/username/format
 
-currently the only supported format is __ical__.
+currently the following formats are supported
+
+* ical
+* csv.
 
 Author
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