Make separate examples proper R-style demos
Change-Id: I0ac284cfc1d0c508030c91189f260299680c1485
diff --git a/demo/00Index b/demo/00Index
new file mode 100644
index 0000000..7fe8aff
--- /dev/null
+++ b/demo/00Index
@@ -0,0 +1,5 @@
+frequenciesOverTime Plot frequency of query expressions over time
+frequenciesOverDomains Box plot frequency of query expressions per topic domain
+conditionsOverTime Plot frequency of query expressions over time under different conditions
+alternativesOverTime Plot proportion of alternative spellings/variants over time
+regional Map plot regional frequencies of query expression