command-usage.md

Command usage examples

##### [Bar chart unstacked](command-usage/bar-chart-unstacked.md) ##### [Pie chart top 10 items](command-usage/pie-chart-top-10-items.md) ##### [Calculate multiple percentiles timechart](command-usage/calculate-multiple-percentiles-timechart.md) ##### [Join kind - inner](command-usage/join-kind-inner.md) ##### [Join - match on two fields](command-usage/join-on-two-field-matches.md)