Added codox documentation generation; updated README.

src/gaza_stats/core.clj

@@ -136,6 +136,15 @@
                [(range (count data)) percentages]})))
 
 (defn chart-accounts-with-donations-by-months-in-range
+  "Return a chart with one line for each calendar month covering from
+  `start-date` (inclusive) to `end-date` (inclusive). Arguments should be
+  supplied as `java.time.LocalDate` objects, or as strings in the format
+  `yyyy-mm-dd`, showing donations as for
+  `chart-donations-by-accounts-in-date-range`, q.v.
+
+  TODO: There are currently two problems with this at present: chart legends
+  are not displayed in sequential order; and there appears to be occasional
+  spurious data (but I don't know why)."
   [start-date end-date]
   (let [sd (cond (date? start-date) start-date
                  (string? start-date) (ld/parse start-date)