Merge branch 'fix/readme' into 'master'

Update README

See merge request !6
9 jobs for v1.3 in 3 minutes and 38 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
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PHPCS

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PHPunit:PHP5.3:MySQL

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PHPunit:PHP5.6:MySQL

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passed #3891
PHPunit:PHP7.0:MySQL

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PHPunit:PHP7.1:MySQL

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PHPunit:PHP7.2:MySQL

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passed #3894
PHPunit:PHP7.3:MySQL

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  Deploy
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PluginSVN

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passed #3896
PluginSVN

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