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Update README.md (#24)

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@ -7,7 +7,7 @@
<a href="https://rubydoc.info/gems/youplot/"><img alt="Docs Stable" src="https://img.shields.io/badge/docs-stable-blue.svg"></a>
<a href="LICENSE.txt"><img alt="The MIT License" src="https://img.shields.io/badge/license-MIT-blue.svg"></a>
YouPlot is a command line tool that draws plots in the terminal.
YouPlot is a command line tool that draws plots on the terminal.
:bar_chart: Powered by [UnicodePlot](https://github.com/red-data-tools/unicode_plot.rb)
</div>
@ -189,7 +189,7 @@ The following sub-commands are available.
* The `--help` option will show more detailed options for each subcommand.
* `uplot hist --help`
### Set columns as x-axis or y-axis?
### Set columns as x-axis or y-axis
* YouPlot treats the first column as the X axis and the second column as the Y axis. When working with multiple series, the first column is the X axis, the second column is series Y1, the third column is series Y2, and so on.
* If you pass only one column of data for `line` and `bar`, YouPlot will automatically use a sequential number starting from 1 as the X-axis.
@ -203,7 +203,7 @@ The following sub-commands are available.
### Categorical data
* With gne datamash, you can manage to handle categorized data.
* With GNU datamash, you can manage to handle categorized data.
* `cat test/fixtures/iris.csv | sed '/^$/d' | datamash --header-in --output-delimiter=: -t, -g5 collapse 3,4 | cut -f2-3 -d: | sed 's/:/\n/g' | uplot s -d, -T --fmt xyxy`
* This is not so easy...