Add some demos for comparisons by country of publication

Change-Id: I609285947eead8b85877e0f507c7efe00791508b
diff --git a/demo/00Index b/demo/00Index
index ad41293..d2148bb 100644
--- a/demo/00Index
+++ b/demo/00Index
@@ -1,12 +1,15 @@
-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
-mosaicplot                  Visualize frequencies of alternative query terms in relation to other variables
-shiny-frequency-curves      Web application that plots frequency curves with highcharts and shiny
-writtenVsSpoken             Compare frequencies in written vs. spoken corpora
-displayKwics                Display query results as KWICs via html
-light-verb-construction-ca  Collocation analysis to identify light verb constructions matching the pattern "in NN setzen", with result rendered as HTML DataTable
-highcharter-example         Visualize frequencies of optionally alternative terms over time with interactive HTML and JavaScript elements using the package highcharter as wrapper for Highcharts
-recursiveCA                 Show result dataframe of recursvie collocation analysis as pretty HTML tableb y Knitr via Markdown.
+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
+mosaicplot                      Visualize frequencies of alternative query terms in relation to other variables
+shiny-frequency-curves          Web application that plots frequency curves with highcharts and shiny
+writtenVsSpoken                 Compare frequencies in written vs. spoken corpora
+displayKwics                    Display query results as KWICs via html
+light-verb-construction-ca      Collocation analysis to identify light verb constructions matching the pattern "in NN setzen", with result rendered as HTML DataTable
+highcharter-example             Visualize frequencies of optionally alternative terms over time with interactive HTML and JavaScript elements using the package highcharter as wrapper for Highcharts
+recursiveCA                     Show result dataframe of recursvie collocation analysis as pretty HTML tableb y Knitr via Markdown.
+frequency_by_country_ggplot     Plot frequencies depending on country of publication using ggplot2.
+frequency_by_country_highcharts Plot frequencies depending on country of publication using highcharter.
+collocation_score_by_country    Plot collocation scores depending on country of publication using ggplot2.