Fix README typos and grammar #1369

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10 warnings

min..min inside match is deprecated, you must always match on the step: min..min//var or min..min//_ if you want to ignore it

min..max inside match is deprecated, you must always match on the step: min..max//var or min..max//_ if you want to ignore it

min..min inside match is deprecated, you must always match on the step: min..min//var or min..min//_ if you want to ignore it

min..max inside match is deprecated, you must always match on the step: min..max//var or min..max//_ if you want to ignore it

_.._ inside match is deprecated, you must always match on the step: _.._//var or _.._//_ if you want to ignore it

min..max inside match is deprecated, you must always match on the step: min..max//var or min..max//_ if you want to ignore it

left..right inside match is deprecated, you must always match on the step: left..right//var or left..right//_ if you want to ignore it